add new board radxa-e52c

[amazingfate]

Description

Radxa E52C is a rk3582 based board with dual 2.5G ethernet. This pr depends on armbian/linux-rockchip#203. Since its soc is rk3582 so it should the same uboot patch from rock-5c to enable good ip cores disabled by u-boot.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also note any relevant details for your test configuration.

• ./compile.sh BOARD=radxa-e52c BRANCH=vendor BUILD_MINIMAL=no DEB_COMPRESS=xz KERNEL_CONFIGURE=no RELEASE=noble KERNEL_GIT=shallow BUILD_DESKTOP=no
• Board boots fine.

Checklist:

Please delete options that are not relevant.

• 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