ANDROID: fuse-bpf: Follow mounts in lookups

Bug: 292925770
Bug: 326149926
Test: fuse_test run. The following steps on Android also now pass:

	Create /data/123 and /data/media/0/Android/data/45 directories
	Mount /data/123 directory to /data/media/0/Android/data/45 directory
	Create 1.txt under the /data/123 directory

	File 1.txt should appear in /storage/emulated/0/Android/data/45

Bug: 326149926

Change-Id: I1fe27d743ca2981e624a9aa87d9ab6deb313aadc
Signed-off-by: Paul Lawrence <paullawrence@google.com>
(cherry picked from commit 613d8368)