Add SIM power down check in airplane mode judgment

When the property("persist.radio.apm_sim_not_pwdn") is 1,
SIM card can be read and wrote on enabling APM mode. In this
situation, don't need to filter SIM contacts.

CRs-Fixed: 641479 640365

Change-Id: I8af92b628c822277c0b40d2a640a39ff1009ed4f