msm: acpuclock-8627: Move 8627 support to use acpuclock-krait

As was recently done for 8930, migrate 8627 support from acpuclock-8960
to the newer, optimized acpuclock-krait driver, which is shared among
multiple SoCs while keeping 8627 data in its own file.

Change-Id: I701fdb6fcd94647fc4d37131bcb2d3b41021b0fb
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>