ANDROID: Add pcie-designware.h and pci.h to aarch64 allowlist

Export the header in all_headers_allowlist_aarch64, for pcie drivers to
use.

Bug: 343869732
Bug: 407023244
Test: Verified the pcie ddk modules are able to include the header.
Change-Id: I1ab5144bf58e6591eefc966e7300770543976012
Signed-off-by: Yuan-Jen (淵仁) Cheng <cyuanjen@google.com>