SR: Custom SR Tuning v1 - supports MPU, IVA, and CORE

Override kernel default VDDMIN via sysfs (debug fs).
/sys/kernel/debug/smartreflex/sr_*/vmin

Conflicts:
	mkboot/boot.img-ramdisk/sbin/sr
Extended sysfs smartreflex tuning interface with sr max control value

Conflicts:
	arch/arm/mach-omap2/smartreflex.c
OMAP: SMARTREFLEX: Added declarations of sr max tuning interface - forgot that in prior commit
OMAP: SMARTREFLEX: Added definitions for sr max tuning interface - forgot that in prior commit

Conflicts:
	arch/arm/mach-omap2/smartreflex.c
OMAP: SMARTREFLEX: Fixed double used val
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