[hwe]: build-in boot-path drivers for no-initrd root (USB/NVMe/MMC/optical/RAID HBAs)

Booting without an initrd means the kernel cannot rely on early userspace to autoload modules
(udev/mdev/nlplug). Make storage and host drivers that can host the root filesystem built-in (=y)
so the kernel can discover and mount root directly across common platforms.

x86/PCI
-------
- CONFIG_VMD=y              # Intel VMD so NVMe behind VMD is visible early

Block / Virt
------------
- CONFIG_VIRTIO_BLK=y       # root on virtio disks without initrd

NVMe
----
- CONFIG_BLK_DEV_NVME=y     # NVMe root without module autoloading

SCSI / RAID HBAs (server boot devices)
--------------------------------------
- CONFIG_SCSI_HPSA=y
- CONFIG_MEGARAID_SAS=y
- CONFIG_SCSI_MPT3SAS=y     # common enterprise boot HBAs built-in

USB host & storage (USB stick / USB CD/DVD)
-------------------------------------------
- CONFIG_USB_XHCI_HCD=y
- CONFIG_USB_XHCI_PCI_RENESAS=y
- CONFIG_USB_XHCI_PLATFORM=y
- CONFIG_USB_EHCI_HCD=y
- CONFIG_USB_STORAGE=y
- CONFIG_USB_UAS=y          # UAS when available

MMC/SD (eMMC/SD cards)
----------------------
- CONFIG_MMC_SDHCI=y
- CONFIG_MMC_SDHCI_PCI=y
- CONFIG_MMC_SDHCI_ACPI=y
(Note: if root on MMC is required, ensure CONFIG_MMC_BLOCK=y as well.)

Filesystems for optical media
-----------------------------
- CONFIG_ISO9660_FS=y
- CONFIG_UDF_FS=y

Rationale
---------
Without an initrd, device-driver autoload from MODALIAS events does not occur.
Building these boot-path drivers into the kernel guarantees USB/NVMe/MMC/optical
and common HBA-backed root devices enumerate in time for root=PARTUUID=… to resolve.

Signed-off-by: Mikhail Malyshev <mike.malyshev@gmail.com>

Author: rucoder

arch/x86/configs/eve-hwe_defconfig

@@ -780,7 +780,7 @@ CONFIG_HOTPLUG_PCI_CPCI=y
 CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m
 CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m
 CONFIG_HOTPLUG_PCI_SHPC=y
-CONFIG_VMD=m
+CONFIG_VMD=y
 CONFIG_PCIE_DW_PLAT_HOST=y
 CONFIG_PCIE_DW_PLAT_EP=y
 CONFIG_PCI_ENDPOINT=y
@@ -938,11 +938,11 @@ CONFIG_BLK_DEV_RAM_SIZE=65536
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_ATA_OVER_ETH=m
 CONFIG_XEN_BLKDEV_BACKEND=m
-CONFIG_VIRTIO_BLK=m
+CONFIG_VIRTIO_BLK=y
 CONFIG_BLK_DEV_RBD=m
 CONFIG_BLK_DEV_RNBD_CLIENT=m
 CONFIG_BLK_DEV_RNBD_SERVER=m
-CONFIG_BLK_DEV_NVME=m
+CONFIG_BLK_DEV_NVME=y
 CONFIG_NVME_MULTIPATH=y
 CONFIG_NVME_HWMON=y
 CONFIG_NVME_RDMA=m
@@ -1025,7 +1025,7 @@ CONFIG_SCSI_BNX2_ISCSI=m
 CONFIG_SCSI_BNX2X_FCOE=m
 CONFIG_BE2ISCSI=m
 CONFIG_BLK_DEV_3W_XXXX_RAID=m
-CONFIG_SCSI_HPSA=m
+CONFIG_SCSI_HPSA=y
 CONFIG_SCSI_3W_9XXX=m
 CONFIG_SCSI_3W_SAS=m
 CONFIG_SCSI_ACARD=m
@@ -1048,7 +1048,8 @@ CONFIG_MEGARAID_NEWGEN=y
 CONFIG_MEGARAID_MM=m
 CONFIG_MEGARAID_MAILBOX=m
 CONFIG_MEGARAID_LEGACY=m
-CONFIG_MEGARAID_SAS=m
+CONFIG_MEGARAID_SAS=y
+CONFIG_SCSI_MPT3SAS=y
 CONFIG_SCSI_MPT2SAS=m
 CONFIG_SCSI_MPI3MR=m
 CONFIG_SCSI_SMARTPQI=m
@@ -3639,7 +3640,8 @@ CONFIG_USB_MON=m
 CONFIG_USB_C67X00_HCD=m
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DBGCAP=y
-CONFIG_USB_XHCI_PCI_RENESAS=m
+CONFIG_USB_XHCI_PCI_RENESAS=y
+CONFIG_USB_XHCI_PLATFORM=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_FSL=m
 CONFIG_USB_EHCI_HCD_PLATFORM=y
@@ -3660,7 +3662,7 @@ CONFIG_USB_HCD_SSB=m
 CONFIG_USB_XEN_HCD=m
 CONFIG_USB_PRINTER=m
 CONFIG_USB_TMC=m
-CONFIG_USB_STORAGE=m
+CONFIG_USB_STORAGE=y
 CONFIG_USB_STORAGE_REALTEK=m
 CONFIG_USB_STORAGE_DATAFAB=m
 CONFIG_USB_STORAGE_FREECOM=m
@@ -3674,7 +3676,7 @@ CONFIG_USB_STORAGE_ONETOUCH=m
 CONFIG_USB_STORAGE_KARMA=m
 CONFIG_USB_STORAGE_CYPRESS_ATACB=m
 CONFIG_USB_STORAGE_ENE_UB6250=m
-CONFIG_USB_UAS=m
+CONFIG_USB_UAS=y
 CONFIG_USB_MDC800=m
 CONFIG_USB_MICROTEK=m
 CONFIG_USBIP_CORE=m
@@ -3864,12 +3866,11 @@ CONFIG_TYPEC_MUX_PI3USB30532=m
 CONFIG_TYPEC_MUX_INTEL_PMC=m
 CONFIG_USB_ROLES_INTEL_XHCI=m
 CONFIG_MMC=y
-CONFIG_MMC_BLOCK=m
 CONFIG_SDIO_UART=m
 CONFIG_MMC_CRYPTO=y
-CONFIG_MMC_SDHCI=m
-CONFIG_MMC_SDHCI_PCI=m
-CONFIG_MMC_SDHCI_ACPI=m
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PCI=y
+CONFIG_MMC_SDHCI_ACPI=y
 CONFIG_MMC_SDHCI_PLTFM=m
 CONFIG_MMC_SDHCI_F_SDH30=m
 CONFIG_MMC_WBSD=m
@@ -5134,10 +5135,10 @@ CONFIG_FSCACHE=m
 CONFIG_FSCACHE_STATS=y
 CONFIG_CACHEFILES=m
 CONFIG_CACHEFILES_ERROR_INJECTION=y
-CONFIG_ISO9660_FS=m
+CONFIG_ISO9660_FS=y
 CONFIG_JOLIET=y
 CONFIG_ZISOFS=y
-CONFIG_UDF_FS=m
+CONFIG_UDF_FS=y
 CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=y
 CONFIG_EXFAT_FS=m