[keys/msm7630]: Remove the syncronization with mARM for PMIC GPIOs.

The PMIC GPIOs are now configured in the mARM boot code before the scorpion
is released from reset. Remove the code that waits for the AMSS initializtion
to complete.

Change-Id: I296aea27fa199898bb6efa08b590e3664a643679
1 file changed