Send targeted broadcasts to prevent other apps from receiving them.

When sending broadcasts ACTION_SNOOZE_WARNING in NPMS, which may
contain sensitive information, explicitly set the package name
that should receive it to prevent other apps from receiving them.

Bug: 177931370
Test: manual
Change-Id: I2a0a0dc09e27791de829bacfb2e865ffea993715
Merged-In: I11d736771d859d2af27d5c84a502ab038974e2e2
(cherry picked from commit fdbcf17a)