libtraceevent: update to 1.8.4

libtraceevent: update to 1.8.4

ChangeLog:
bd47bd5 libtraceevent: 1.8.4
fe0bc49 libtraceevent: Print function pointer address when TEP_EVENT_FL_PRINTRAW is specified
f2224d5 libtraceevent: Have sizeof() parsing handle u8/s8 through u64/s64
5f570de libtraceevent: Print arrays like Linux does
645a883 libtraceevent: 1.8.3
d4c1fb4 libtraceevent: Add meson build targets to Makefile
c3dc220 libtraceevent: Fix a double free in process_op()
021da90 libtraceevent: Do not return a local stack pointer in get_field_str()
340e2e6 libtraceevent: Have unit test fail when any tests fail
c84155f libtraceevent: prevent a memory leak in tep_plugin_add_option()
03551eb libtraceevent: Prevent a memory leak in process_fields()
34ece90 libtraceevent: Close shared object in the error path of load_plugin()
8802f0f libtraceevent: Avoid a simple asprintf case
76a0eb8 libtraceevent: Fix event-parse memory leak in process_cond
5bc98bd libtraceevent: Have single quotes represent characters
ec8e0cc libtraceevent: Fix tests running on big endian arch
60ed6c3 libtraceevent: build: Various fixes for the Meson build of libtraceevent
0351241 libtraceevent utest: Include libgen.h for basename() with musl

Link: https://github.com/openwrt/openwrt/pull/18349
Signed-off-by: Nick Hainke <[email protected]>