Add FLAG_RECEIVER_FOREGROUND to CatService broadcast intents

Stk app is unable to receive broadcasts from CatService until
BOOT_COMPLETED intent is received from framework.

FLAG_RECEIVER_FOREGROUND flag is added to the intents sent
by CatService so that Stk app can receive these broadcasts
before BOOT_COMPLETED is received.

Change-Id: Ica8e72e354891438dcd6b7e899a2ba78d980d396