msm: 8092: Enable PCIe with clock and board support

Add mapping for PCIe device so that PCIe driver can operate
on and manage the clocks for PCIe device. And add auxdata lookup
entries for PCIe in board file to match the device name with
clocks.

Change-Id: I323c1d6871869367c4642082af9bb5735a53c1a7
Signed-off-by: Yan He <yanhe@codeaurora.org>