Revert "config: enable BIGMEM and set VRAM size to 12MB"

This reverts commit 3225d65020294c050f3074658d630eb3fb9341c7.
Revert "HUGEMEM: rename to BIGMEM and add 8 MB to HEAP_TILER again"

This reverts commit 94a2f590b06011f115a73151bf66ec68a3d5cc22.
Revert "Tuna: add option to reclaim ~73 MB of reserved RAM (HUGEMEM)"

This reverts commit 2ad10294bda56ff114b00415dca873b935bc410d.
[ASRAM]: Additional Safe RAM (~50 MB) reclaimed from YUV Tiler reserved one.
Add option to reclam ~50 MB of RAM from HEAP_TILER. If we reclam max 50 MB, 1080p mode is still working.

Credits to mpokwsths for the idea and to boype for making it a more organized option.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>

Conflicts:
	arch/arm/configs/paranoid_defconfig
	arch/arm/mach-omap2/Kconfig
config: enable ASRAM
increase voltage of 512Mhz GPU clock for stability
Tinykernel 5.3