ftrace_reader: Fix comments in cpr_reader_unittest.cc
ftrace_reader: Fix comments in cpr_reader_unittest.cc

Bug: 69362224
Change-Id: Ic40f5da4b139ae85589dbbee965302bc6fff95fa

google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto