Revert "ARM: dts: msm: Use PCIe_MSI for Shima"

This reverts commit 6b84a80d.
Commit 6b84a80d ("ARM: dts: msm: Use PCIe_MSI
for Shima") revert the synopsys MSI controller to GIC
interrupt controller. We are facing an issue where
wake MSI is enabled after DRV suspend by the time PCIe clocks
are off and also there is an interrupt latency with SNPS
controller.

Change-Id: Iaf47c2c8b9c188183d6ad0e72bb7d05b0b7262b7