Clean-up for omaps for v4.4 merge window:
- Remove legacy omap3 ISP code as the driver is DT only
- Remove VoiceBlue board support as it's been unused over
10 years now
- Remove unused polarity control macros for TWL
- Remove two unneeded semicolons
- Remove unused core dpll code for reprogramming the rates
Note that this branch is against v4.3-rc4 as that contains critical
MMC related fixes to boot with MMC working on most omaps.
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