Update EdgeTPU PCIe registers in the device tree

Enable EdgeTPU in PCIe enumeration.

Tested:
mendel@elusive-kid:~$ lspci
00:00.0 PCI bridge: Synopsys, Inc. DWC_usb3 (rev 01)
01:00.0 System peripheral: Device 1ac1:089a

Change-Id: Ib5f20f052c42846857af1be32ef719844a09ea34
1 file changed