Add RG353M/RG353V rumble support

[r4df0x]

Description

Adds a new RK3566-BSP kernel patch to enable native rumble support for the Anbernic RG353M and RG353V.

This ports the relevant pieces from the ArkOS RG353 kernel implementation:

• adds PWM5 to the RG353M/RG353V singleadc-joypad device-tree nodes
• registers standard Linux FF_RUMBLE support in singleadcjoy when a PWM is available
• keeps rumble optional so devices without a pwms property should continue probing normally

Reference implementation:
christianhaitian/RG353VKernel@f82c197

This PR only adds one UnofficialOS build patch file:

projects/Rockchip/patches/linux/RK3566-BSP/0006-rg353-add-joypad-rumble.patch

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested Locally?

This has not been hardware tested on an RG353M/RG353V.

Local verification performed:

• Confirmed the PR contains only one new file addition in the UnofficialOS tree
• Checked that the new kernel patch targets the current RK3566-BSP kernel files from RetroGFX/rk356x-kernel
• Checked the referenced kernel symbols/configs are present in the RK3566-BSP kernel source/config
• Ran a GitHub Actions kernel-only build test in my fork
• Applied this patch to the RK3566-BSP kernel source used by UnofficialOS
• Configured the kernel with the UnofficialOS RK3566-BSP aarch64 kernel config
• Compiled drivers/input/joystick/singleadcjoy.o
• Compiled the RG353M and RG353V device trees

Build log:
https://github.com/r4df0x/UnofficialOS/actions/runs/24285058852/job/70912939712

Not performed:

• Full UnofficialOS image build
• RG353M/RG353V hardware test

Test Configuration:

• Build OS name and version: GitHub Actions ubuntu-22.04
• Docker (Y/N): N for the successful kernel-only test
• UnofficialOS Branch: main
• Any additional information that may be useful: The successful test was a kernel-only compile check, not a full UnofficialOS image build.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code

[r4df0x]

Update: I ran a GitHub Actions kernel-only build test in my fork for this patch.

The test:

• cloned the RK3566-BSP kernel source used by UnofficialOS
• applied this PR's 0006-rg353-add-joypad-rumble.patch
• configured the kernel with the UnofficialOS RK3566-BSP aarch64 kernel config
• compiled drivers/input/joystick/singleadcjoy.o
• compiled the RG353M and RG353V device trees

Result: the test completed successfully.

Build log:
https://github.com/r4df0x/UnofficialOS/actions/runs/24285058852/job/70912939712

This is still not hardware tested on an RG353M/RG353V.

[r4df0x]

Turns out I can't really get the original implementation to work on dArkOS any more so this is pointless to continue.