Add new device Retroid Pocket RP5 and RPMini

[tjstyle]

Description

Retroid Pocket RP5 and RPMini are Qualcomm SM8250 based device, but since it come with dual boot capability, Booting Android from UFS and also have u-boot that can boot UEFI based OS from MicroSD card slot, so this PR are for building existing SM8250 platform that producing SDCard image instead of ABL type image.

Actually RP5 and RPMini are only different in dtb image used and also slightly different cmdline, so in the future it can be merge to only use 1 config files and use grub boot option to select the device.

How Has This Been Tested?

RP5:

• ./compile.sh BOARD=retroidpocket-rp5 BRANCH=current RELEASE=noble BUILD_DESKTOP=yes BUILD_MINIMAL=no KERNEL_CONFIGURE=no DESKTOP_APPGROUPS_SELECTED= DESKTOP_ENVIRONMENT=gnome DESKTOP_ENVIRONMENT_CONFIG_NAME=config_base

RPMini:

• ./compile.sh BOARD=retroidpocket-rpmini BRANCH=current RELEASE=noble BUILD_DESKTOP=yes BUILD_MINIMAL=no KERNEL_CONFIGURE=no DESKTOP_APPGROUPS_SELECTED= DESKTOP_ENVIRONMENT=gnome DESKTOP_ENVIRONMENT_CONFIG_NAME=config_base

Peripheral that was working :

• Display
• Touchscreen
• GPU
• WiFi
• Bluetooth
• PWM Fan
• Gamepad
• Haptic
• RGB Led
• Battery status
• USB Charging

Only Audio part that still hit and miss, sometime it not detected, but when detected default volume are too loud, so set volume to minimal first before use.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

[amazingfate]

Nice work, I'm going to test the kernel patches on xiaomi-elish.

[tjstyle]

Nice work, I'm going to test the kernel patches on xiaomi-elish.

Any conflict / regression with this kernel patches?

[amazingfate]

Nice work, I'm going to test the kernel patches on xiaomi-elish.

Any conflict / regression with this kernel patches?

Looks fine. But at the moment dsi panel of xiaomi elish is broken with 6.11.10 kernel. I'm thinking of bumping sm8250-current to 6.12.

[amazingfate]

Although I'm not able to check on xiaomi elish because its dsi panel is broken with 6.11.10, let's merge it. I will include the kernel patches when bumping 6.12.

[tjstyle]

Although I'm not able to check on xiaomi elish because its dsi panel is broken with 6.11.10, let's merge it. I will include the kernel patches when bumping 6.12.

Actually I have 6.12 tree also, but since in Armbian still use 6.11, so I follow to use that.
For 6.12 here is need modification for SMB5 charger driver, I will update that when you was bump the version.