ARM: OMAP2+: CM: move SoC specific init calls within a generic API

This gets rid of need for some exported driver APIs, and simplifies the
initialization of the CM driver. Done in preparation to make CM a
separate driver. The init data is now also passed to the SoC specific
implementations, allowing future expansion to add feature flags etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

diff --cc arch/arm/mach-omap2/cm2xxx.c
Simple merge

diff --cc arch/arm/mach-omap2/cm2xxx.h
Simple merge

diff --cc arch/arm/mach-omap2/cm33xx.c
Simple merge

diff --cc arch/arm/mach-omap2/cm33xx.h
Simple merge

diff --cc arch/arm/mach-omap2/cm3xxx.c
Simple merge

diff --cc arch/arm/mach-omap2/cm3xxx.h
Simple merge

diff --cc arch/arm/mach-omap2/cm44xx.h
Simple merge

diff --cc arch/arm/mach-omap2/cm_common.c
Simple merge

diff --cc arch/arm/mach-omap2/cminst44xx.c
Simple merge

diff --cc arch/arm/mach-omap2/io.c
Simple merge

diff --cc arch/arm/mach-omap2/prm_common.c
Simple merge