libtraceevent: import from meta-openembedded

Import from meta-openembedded at commit d250a0dc0 ("libtraceevent:
upgrade 1.7.1 -> 1.7.2").
Starting with kernel 6.4 libtraceevent is a dependency of perf. While
one can still build perf without it by opting out one would loose its
functionality compared with building perf from kernels before 6.4

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>