sysclk: add GPU sched ini method

Source/sys-clk/common/include/sysclk/board.h

@@ -137,6 +137,12 @@ typedef enum {
     GpuSchedulingMode_EnumMax,
 } GpuSchedulingMode;
 
+typedef enum {
+    GpuSchedulingOverrideMethod_Ini = 0,
+    GpuSchedulingOverrideMethod_NvService,
+    GpuSchedulingOverrideMethod_EnumMax,
+} GpuSchedulingOverrideMethod;
+
 typedef enum {
     GovernorState_DoNotOverride = 0,
     GovernorState_Disabled,