upstart: Use INC_PR

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@palm.com>
Change-Id: I6307a2e1b3243e3cd287904713243f9317067dbc
Reviewed-on: http://g2g.palm.com/1147
Reviewed-by: Build Verification
Reviewed-by: Herb Kuta <herb.kuta@palm.com>
Reviewed-by: Iyad Qumei <iyad.qumei@palm.com>
Reviewed-by: Susan Montooth <susan.montooth@palm.com>
Tested-by: Martin Jansa <martin.jansa@palm.com>