msm: pcie: do not set irq chip data when using QGIC MSI

When using QGIC MSI, the MSI controller is GIC not PCIe host
driver. Only set irq chip data if PCIe host is the MSI
controller.

Change-Id: I0ba9e78127424ab3da4b1f46b3ed3fa5d65d05f6
Signed-off-by: Tony Truong <truong@codeaurora.org>