Don't allow importing contacts to accounts passed in by intent unless it is...

Don't allow importing contacts to accounts passed in by intent unless it is valid am: c8c222bc am: 8c7f6ee2 am: 2134eeb0 am: 711cffaa am: 202cb05e

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Contacts/+/24309801



Change-Id: I7dcd8852f7119e4865184640e7a85edf5e2e928f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>