msm: clock-9615: Rename pll*_acpu_clk to pll*_activeonly_clk

The pll*_acpu_clk PLLs were created to allow PLLs to be
enabled and disabled without voting on CXO in the sleep
set. Previously, acpuclock was the only client of these
PLLs, but there are now some USB clocks that require
them as well. Rename these clocks to pll*_activeonly_clk.

Change-Id: Id94f9d41a8d566a95e2cfb615de67c11eaa081dd
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>