pinctrl: qcom: Add flexibility to disable the wakeup capability

By default, the system firmware enables the mpm wakeup functionality
of all the supported GPIOs. However, certain usecases demand that
this capability be disabled on certain gpios. Hence, provide a
generic interface to disable the GPIOs as needed.

Change-Id: I3b051bf676a157410880a3c596b784212a927a36
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>