clk: Add support for power of two type dividers
clk: Add support for power of two type dividers

Quite often dividers and the value programmed in the
register have a relation of 'power of two', something like
value	div
0	1
1	2
2	4
3	8...

Add support for such dividers as part of clk-divider.

The clk-divider flag 'CLK_DIVIDER_POWER_OF_TWO' should be used
to define such clocks.

Signed-off-by: Rajendra Nayak <4802c9324e296bd4f067f90ad87878b5665d33d2@ti.com>
Signed-off-by: Mike Turquette <6dab61939fc5e23761050a66932f032dceda5ebf@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs