Updated: Sys-clk-OC, Loader, System_settings

- Sys-clk-OC

  - Major cleanup in clock_manager, preparing to add basic Erista support.

  - Added an experimental CPU & GPU frequency governor.

    - Known issue:

      - Occasional stuttering is expected: GPU load% metric PMU_GET_GPU_LOAD does not reflect real utilization precisely. Use another metric, some interpolation algo or add min frequency option for improvement.

- Loader

  - Addressed an issue for Erista variants: Boot with unmodified Fusee or Hekate, nn::pcv::EmcDvfsPeriodicCompHandler will fail with rc 0x8C5. Fixed by removing 40.8 MHz while retaining 1600.0 MHz MEM table -- however, this means user has to use modified sys-clk.

Source/sys-clk-OC/sysmodule/perms.json

@@ -26,7 +26,7 @@
 			"value": {
 				"highest_thread_priority": 63,
 				"lowest_thread_priority": 24,
-				"lowest_cpu_id": 3,
+				"lowest_cpu_id": 0,
 				"highest_cpu_id": 3
 			}
 		},
@@ -74,6 +74,7 @@
 				"svcOutputDebugString": "0x27",
 				"svcReturnFromException": "0x28",
 				"svcGetInfo": "0x29",
+				"svcSetThreadActivity": "0x32",
 				"svcWaitForAddress": "0x34",
 				"svcSignalToAddress": "0x35",
 				"svcCreateSession": "0x40",