af-binder: Add recent improvements and fixes

af-binder: Add recent improvements and fixes

Bump af-binder revision to include the following:
 * 5026438 Build af-binder-devtools-native using GCC-9.1.1
 * d6f6df8 afb-daemon: Add /tmp has fallback for uploads
 * f9c7430 jobs: Fix infinite wait lock
 * 02fe255 Fix afb document typo.
 * 4da9c71 afb-export: Fix requirement on multiple apis
 * 5d57096 coverage: Add test of AFB_DEBUG_WAIT
 * 216666e coverage: Allow to run coverage everywhere
 * d00bfe9 Allow to tune installation directories
 * 5214323 doc: Improve comment on asynchronous calls
 * 6401efb binding-wrap: Rework of context handling
 * 13457f6 samples: wrong parameter for get_new_board()
 * 78fcce2 Merge changes Id24d9bb0,I6807ed25
 * 92c9d33 change style initialization of struct afb_auth
 * b369498 missing full initialization for struct afb_verb_v3
 * a1e6d2c Merge "afb-migration-to-binding-v3: fix broken links"
 * a4cf888 afb-migration-to-binding-v3: fix broken links
 * 036629f Fix small issues
 * 8f12ffa coverage: Update Makefile
 * 6b2b09d Reordering of sample and tutorial bindings
 * 9cf1fce Fix rpm packaging following review 20926
 * c80873f Change agl-app-framework-binder.sh

BUG-AGL: SPEC-2482

Change-Id: Ied029a20edffd1ac2b347c94819f230a38d3d0b4
Signed-off-by: Bechir Mghirbi <bechir.mghirbi@grammer.com>