~xdavidwu/saf-cephfs

build: update toolchain, opt-in predictive back
update prebuilts

brief changelog:
ceph v17.2.3, openssl 1.1.1q, ndk r25.b
README: update status, drop WIP flag

while this is not done, it is already useful enough for general cases
DocumentsProvider: set client_dirsize_rbytes=false
update prebuilts

brief changelog:
ceph v17.2.1, with logcat hack, dirsize_rbytes=false performance fix
openssl 1.1.1p
jni: update to quincy
MediaMetadataReader: support audio
DocumentsProvider: add video metadata support
MetadataReader: support mimetypes a la ExifInterface
DocumentsProvider: support reading exif metadata

MetadataReader is ported from AOSP android-12.0.0_r3,
frameworks/base/core/java/android/provider.
DocumentsProvider: fill mime-type on special files

prevents DocumentsUI from displaying a "null" and no icon
DocumentsProvider: use cursor extras for error when allowed

instead of toast + exception, use cursor extras for error string, as
reference recommends. DocumentsUI handles it and displays to user.
DocumentsProvider: detect symlink to dirs
tree: remove ceph.patch

this is unused since pacific rebase, which source is hosted in a new
standalone repo
DocumentsProvider: unify metadata row building

this also fix a case where full path are taken as display names
DocumentsProvider: simplify logging and toasting
Revert "CephMount: add missing IOException throw to mount()"

This reverts commit 3cc32c4928758dbbd559ddf85d419bda28721b4a.

Unneeded modification after 7eb7507da84e9c9405f4b8149e61378594c205aa
DocumentsProvider: wrap remaining mount() to throw IOE
CephFSDocumentsProvider: simplify mount setup handling
CephFSDocumentsProvider: improve log messages
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