ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omap

New struct omap_globals contains the omap processor specific
module bases. Use omap_globals to set the various base addresses
before to make detecting omap chip type simpler.

Also introduce OMAP2_IO_ADDRESS for future multi-omap patches.

Signed-off-by: Tony Lindgren <tony@atomide.com>

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

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

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

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

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

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

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

diff --cc arch/arm/plat-omap/common.c
Simple merge

diff --cc include/asm-arm/arch-omap/common.h
Simple merge

diff --cc include/asm-arm/arch-omap/control.h
Simple merge

diff --cc include/asm-arm/arch-omap/io.h
Simple merge