ANDROID: fuse: Support errors from fuse daemon in canonical path

Previously errors from the daemon in FUSE_CANONICAL_PATH were simply
ignored. In order to block inotifys, it is useful to be able to return
errors from this opcode.

[drosen: I've combined this patch with a few others that fix dealing
with error codes (mostly ENOSYS) to make it harder to lose these again
in the future:

ANDROID: fsnotify: Do not notify lower fs of open when ENOSYS
ANDROID: fuse: Skip canonical path logic if ENOSYS
ANDROID: fuse: Fix the issue of fuse_dentry_canonical_path ]

Bug: 238619640
Test: inotify no longer works on /storage/emulated/0/Android/media but
      does on child folders
Bug: 326995824
Test: cts-tradefed run commandAndExit cts -m CtsOsTestCases -t android.os.cts.FileObserverTest
Bug: 330136711
Test: ./cts-tradefed run commandAndExit cts -m CtsIncidentHostTestCases -t com.android.server.cts.ErrorsTest#testTombstone

Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: Icb15c090c6286c174338471a787712f8388de316