[GPU OC] Max freq: 1305 MHz, tested with FP32 compute shaders; Disable GPU overvolting

Source/sys-clk-OC/README.md

@@ -28,13 +28,7 @@ Switch sysmodule allowing you to set cpu/gpu clocks according to the running app
 
 ### GPU clocks
 
-* 1??? → unknown max for Mariko
-* 1497
-* 1459
-* 1420
-* 1382
-* 1344
-* 1305
+* 1305 → OC max for Mariko
 * 1267 → official max for Mariko
 * 1228
 * 1152
@@ -55,7 +49,7 @@ Switch sysmodule allowing you to set cpu/gpu clocks according to the running app
 
 ### MEM clocks
 
-**Only 1331 and Max could be set in sys-clk-OC.**
+**Only 1600 and Max could be set in sys-clk-OC.**
 
 From Hekate Minerva module [sys_sdrammtc.c](https://github.com/CTCaer/hekate/blob/197ed8c319bd4132e4d7571ce037d4a27f806bba/modules/hekate_libsys_minerva/sys_sdrammtc.c#L67)
 

Source/sys-clk-OC/common/src/clock_table.c

@@ -70,11 +70,5 @@ uint32_t sysclk_g_freq_table_gpu_hz[] = {
     1228800000,
     1267200000,
     1305600000,
-    1344000000,
-    1382400000,
-    1420800000,
-    1459200000,
-    1497600000,
-    // 1536000000,
     0,
 };