Creates PILS version with several TALP regions

This commit will modify the pils.c to include a compilation option that
creates several TALP regions, that are started at the begining of the
execution and stoped at the end.

It will also adapt the Makefile to include the compilation option for
this new version.

Signed-off-by: JOAN VINYALS YLLA CATALA <joan.vinyals@bsc.es>