Merge intent filters so intent forwarding works.

Settings forwards intent filters from work to
personal profile based on intent filter returned
from resolving activities.

Test: CTSVerifier, Open BYOD Managed Provisioning test, Click on "Cross profile intent filters are set " test.
Bug: 36275359
Change-Id: I83b7112c4a00a08f0af2be59669a073691fbda0b