msm: pcie: Add ASM2806 PCIe device and vendor id

Add PCIe switch ASM2806 into pci id table so that it will be
probe during PCIe enumeration.

Change-Id: I40373f671849360938289d828a4c9d9ae0d96e99
Signed-off-by: Zhenlin Lian <lianzhenlin@codeaurora.org>