pic: msm: Clean up msm_pcie_pm_control API

Instead of using global array of msm_pcie_dev use
existing PCIe device pointer in the function. Also
fix the indentation of the debug log strings.

Change-Id: I82eaaf2bfcbd4f588d1970131e0185f51d0f8ea5
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>