[nrf noup] bootutil/loader: integrate nRF54h S2RAM with diect-xip

Added call which designate active slot so MCUBoot can jump to
proper slot when CPU is resuming from S2RAM.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>

Author: nvlsianpu

boot/bootutil/src/loader.c

@@ -84,6 +84,10 @@ int pcd_version_cmp_net(const struct flash_area *fap, struct image_header *hdr);
 #include "bootutil/key_revocation.h"
 #endif
 
+#ifdef CONFIG_SOC_NRF54H20_PM_S2RAM_OVERRIDE
+void s2ram_designate_slot(uint8_t slot);
+#endif
+
 BOOT_LOG_MODULE_DECLARE(mcuboot);
 
 static struct boot_loader_state boot_data;
@@ -3600,6 +3604,11 @@ context_boot_go(struct boot_loader_state *state, struct boot_rsp *rsp)
         }
     }
 
+#ifdef CONFIG_SOC_NRF54H20_PM_S2RAM_OVERRIDE
+    /* Designate the slot to be used by the PM_S2RAM resume module */
+    s2ram_designate_slot((uint8_t)state->slot_usage[0].active_slot);
+#endif
+
     /* All image loaded successfully. */
 #ifdef MCUBOOT_HAVE_LOGGING
     print_loaded_images(state);