libtracefs: update to 1.5.0

libtracefs: update to 1.5.0

Changes:
93f4d52 libtracefs: version 1.5
bc857db libtracefs: Add tracefs_u{ret}probe_alloc to generic man page
db55441 libtracefs: Add tracefs_debug_dir() to generic libtracefs man page
d2d5924 libtracefs: Add test instructions for openSUSE
4a7b475 libtracefs: Fix test suite typo
ee8c644 libtracefs: Add tracefs_tracer_available() helper
799d88e libtracefs: Add API to set custom tracing directory
1bb00d1 libtracefs: allow pthread inclusion overrideable in Makefile
04651d0 libtracefs sqlhist: Allow pointers to match longs
9de59a0 libtracefs: Remove double free attempt of new_event in tracefs_synth_echo_cmd()
0aaa86a libtracefs: Fix use after free in tracefs_synth_alloc()
d2d5340 libtracefs: Add missed_events to record
9aaa8b0 libtracefs: Set the number of CPUs in tracefs_local_events_system()
56a0ba0 libtracefs: Return negative number when tracefs_filter_string_append() fails
c5f849f libtracefs: Set the long size of the tep handle in tracefs_local_events_system()
5c8103e revert: 0de961e74f96 ("libtracefs: Set visibility of parser symbols as 'internal'")

Signed-off-by: Nick Hainke <vincent@systemli.org>