perf evlist: Remove fcntl.h from evlist.h

perf evlist: Remove fcntl.h from evlist.h

Not needed there, fixup the places where it is needed and was getting
only by luck via evlist.h.

Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>