Add missing DMA header file.

[lihuanhuan]

Summary by CodeRabbit

• New Features
  • Enhanced data transfer management improves system efficiency and stability.
  • Optimized communication handling leads to a more responsive and reliable Bluetooth connectivity experience.

[coderabbitai]

Walkthrough

This pull request adds a new header file that defines DMA configuration for UART4 and SPI2 peripherals. The file contains macro definitions for DMA streams, request identifiers, NVIC interrupt numbers, and interrupt handlers used in DMA operations. These changes standardize the setup of DMA channels for both UART and SPI on STMicroelectronics' BLE components.

Changes

File(s)	Change Summary
core/.../dma_channel.h	Added header file with DMA macros/constants for UART4 (RX/TX) and SPI2 (RX/TX), including IRQ numbers and handlers.

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (2)

core/embed/trezorhal/dma_channel.h (2)

18-18: Remove redundant comments.

These comments restate the obvious.

-/* Definition for SPIx's DMA */
-/* Definition for SPIx's NVIC */

Also applies to: 25-25

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33-33: Add newline at end of file.

Missing newline character.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8dcc0d7 and d57fc88.

📒 Files selected for processing (1)

• core/embed/trezorhal/dma_channel.h (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: Gen check
• GitHub Check: Defs check
• GitHub Check: Style check