OMAP4: EMIF: code cleanup and clarification

Removed unused fields of emif_regs structure and
functions that initialize or change them.

Also changed few names of emif_regs members
to match register names.

This made the code easier to understand and read
as well as made it a little bit faster

Change-Id: I0485a01b7f03e922b5a2e69bfb03c2ed941fcf3b
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>

Conflicts:
	arch/arm/mach-omap2/emif.c

Conflicts:
	arch/arm/mach-omap2/emif.c
	arch/arm/mach-omap2/pm44xx.c
plat-omap: add compatibility with new TI OMAP thermal framework drivers
OMAP4: ID: Chip detection for OMAP4470

Add support for detection of the next chip in the OMAP4 family: OMAP4470 ES1.0

Change-Id: I931d3df6e69fdc3ee4a307c204a68fc9b3ff519b
Signed-off-by: Leonid Iziumtsev <x0153368@ti.com>
modified by faux123

Conflicts:
	arch/arm/plat-omap/include/plat/cpu.h