CLK: TI: OMAP2: add clock init support

Adds support for registering the alias clocks, boot time clock-enable list
and disabling autoidle of clocks.

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

diff --cc drivers/clk/ti/Makefile
Simple merge

diff --cc drivers/clk/ti/clk-2xxx.c
Simple merge

diff --cc include/linux/clk/ti.h
Simple merge