v4.4 — CPU OC correction

What's new in v4.4

CPU OC correction

• All "1608 MHz" labels changed to "CPU OC (teacupx)" — on stock dArkOSRE kernel the CPU does not run above ~1296 MHz regardless of the DTB patch
• Info screen removed "no kernel recompile needed" claim; now explicitly states: requires teacupx kernel, real max 1512 MHz
• RAM OC menu now shows "Tune voltage" or "Add 1032 MHz [EXPERIMENTAL]" when 924 MHz is already active

Docs

• README: GPU benchmark results clarified as full OC+UV comparison (not GPU-only)
• README: CPU OC section updated to reflect teacupx requirement