ARM: OMAP3: clock: remove clock3xxx.c file

This now only has a couple of variables within it, which are used outside
the file itself. Move these variables to where they are actually used,
and remove the file completely as it is now empty.

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

diff --cc arch/arm/mach-omap2/Makefile
Simple merge

diff --cc arch/arm/mach-omap2/clkt34xx_dpll3m2.c
Simple merge

diff --cc arch/arm/mach-omap2/clock3xxx.c
Simple merge