msm: clock-8960: Add support for msm8960ab clocks

Apply differences between 8960 and 8960ab, including:
1) Set PLL3 frequency to 650MHz.

2) Update frequency table and FMAX_HIGH/NOMINAL/LOW for mdp_clk,
gfx3d_clk.

3) Update reg_init, 8960_pre_init, 8960_post_init register settings.
Remove all bits marked "reserved" in 8960ab.

4) Separate lookup table into 8960 common clocks, 8960ab only clocks,
and 8960-only clocks.

Change-Id: Ie0fde5c0a289c70005622d61079ed3cddeeae095
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>