msm: pcie: disable PCIe CLKREQ override during PCIe DRV resume

It's possible that other subsystems did not properly disable
PCIe CLKREQ override when handing back the link to APPS. During
DRV resume, always disable PCIe CLKREQ override for APPS.

Change-Id: I4a522d81e9a6df7e6371f86b478e02e7b2034935
Signed-off-by: Tony Truong <truong@codeaurora.org>