Add capabilities to PCI configuration space
Add capabilities to PCI configuration space

Allow PCI devices to specify the capabilities they have.

Change-Id: I0730fb18dc71aa252da0903f4273e8d922ee2b8d
Signed-off-by: Dylan Reid <c791bfe44996c1eed9c7149a0c5f12a86d58eb85@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1157440
Reviewed-by: Jingkui Wang <c645f91f31b7cead6dc73127db4670945d892e95@google.com>

google/crosvm,google/crosvm,google/crosvm,google/crosvm