omap443x_cpu_control: Do frequency bound checks AFTER rounding

The frequency bound checks should be done on the frequency which will be
applied to hardware, which is the rounded frequency
omap443x_cpu_control: Create constant GPU_OC_OPP_IDX
omap443x_cpu_control: Show user if the MPU is actually a 1.2 GHz part

This will let the user know if the 1.2 GHz OPP is valid
omap443x_cpu_control: Introduce a GPU Throttling mechanism

Operates by replacing the fastest tweaked OPP with the stock OPP.
omap443x_temp_sensor: Throttle GPU when throttling MPU
omap443x_cpu-control: Compile Fix
omap443x_cpu_control: Fix integer types for consistency

Ugh.
omap443x_cpu_control: Fix copy-pasta error
omap443x_cpu_control: MORE COMPILE FIXES
omap443x_cpu_control: Remove omap_has_mpu_1_2ghz()

Can't call that one because it uses a variable available only to
built-ins, and the function is inlined.
compile fixes.