ANDROID: fuse-bpf: Ignore readaheads unless they go to the daemon

readpages will be triggered on the fuse fs in passthrough mode though
system calls like fadvise. If the daemon isn't aware of the file, this
will likely cause a hang.

For the moment, simply ignore fadvise in this situation

Bug: 301201239
Bug: 318481331
Test: fuse_test, atest ScopedStorageDeviceTest both pass
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I524a84aeeb1b1593e51264fcc37f7cfa66757168
(cherry picked from commit cfdfc17a)