msm: pcie: correct PCIe clean up sequence for failed link setup

PCIe pipe clock is the last resource to be enabled. Therefore,
move PCIe pipe clock deinit to the correct place in PCIe clean
up sequence.

Change-Id: I8b20debcfae7296099d521fc0b41eddc382a3302
Signed-off-by: Tony Truong <truong@codeaurora.org>