msm: pil: Remove late initcall to shut down processors

This initcall was put in place to shut down the processors during
late init to save power. Now that we use the driver model we can
have the affected driver(s) do this in their probe instead and
save calling shutdown for all processor from the core PIL code.

Change-Id: If575589060f1c68177879b6c953f264892e91776
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>