src/libpcp/src/util.c: add deprecated debugging for __pmSetDebugBits()
src/libpcp/src/util.c: add deprecated debugging for __pmSetDebugBits()

Even though I just added this method, it is providing deprecated
functionality for apps that are still operating in the old bit-fields
world of debugging options control.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp