platform: msm_shared: Reset vendor specific register during init

Vendor specific register is not reset during the soft reset of the
controller. If the previous stage bootloaders leave the value to unknown
state there could be failures while initilizing the card. Set the vendor
specific register to its reset value to make sure the register is in its
reset state.

Change-Id: I93219c1d063181662c21d3614fca422226be4526
1 file changed