android: remove explicit include to libpciaccess

Both android-x86 and android-ia versions of libpciacccess correctly
"export" the include. If anyone else is wrapping up their own version
they should do so as well.

Remove this fixed location hack from the build.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Chih-Wei Huang <cwhuang@linux.org.tw>