Make notifications from the default dialer and SMS app unblockable.

OEM devices should overlay this resource to match the
built-in dialer and messaging client.

Bug: 119563448
Test: manual, on aosp
Change-Id: I94ff199741040e637f91e7b1db36208ab5c79182
(cherry picked from commit f5a8f213822754f65344c4e013c7574ddfdd18d0)
1 file changed