Do not update External state until we receive card status.

When updateExternalState is called before card state is received
from RIL, unwanted ABSENT state is getting broadcasted to
external apps incase of property apm_sim_not_pwdn is  set to 1.

So do not broadcast card state to external apps until we
receive card status from RIL atlease once.

Change-Id: I8803360dd57055ca3534b6dc7bade63ff629c730
CRs-Fixed: 520485
(cherry picked from commit 992b7a017985edf4ac6ced9fdaeb7738dce083ba)
(cherry picked from commit 4fa02733eaed69cd03ef63c9620932de06b42746)
(cherry picked from commit 2aaf41e17ccda2163e8143e7d9a6b755011b9851)