Correct SipService.isOpened() implementation.
Correct SipService.isOpened() implementation.

Make it return true for all existing accounts.
Rename mOpened to mOpenedToReceiveCalls to make it less confusing.

Bug: 3155849
Change-Id: I327f411bf76afd73434ad1fa2ffef3db1e35d778

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base