perf: Use perf script to parse traces

To compile perf binary for the target:
$ cd kerneltree/tools/perf
$ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make -j8 'LDFLAGS=-static'

To record perf.data file:
$ perf record --event 'sched:*' --overwrite -o perf.data

note: --overwrite allows to only use the ring buffer and avoids perf to
wakeup to flush the data to disk. It only does it once at the end when
interrupted or on SIGUSR2.

To parse the trace using LISA:

from lisa.trace import Trace
trace_path = 'perf.data'
trace = Trace(trace_path, events=['sched_wakeup'])
df = trace.df_events('sched_wakeup')
print(df)