* support/regression/tests/bug-895992.c,

  support/regression/tests/onebyte.c:
  enabled pic16 regression testing since the bugs
  1511794: pic16: regression test bug-895992.c fails
  1444425: onebyte.c regression tes fails on pic16
  are fiexed, probably by fixing
  2048464: PIC16: fix genUminus - addresses not.c regression test

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@5224 4a8a32a2-be11-0410-ad9d-d568d2c75423