am d580eee2: Merge "SipPhone: switch to its own phone type PHONE_TYPE_SIP." into gingerbread

Merge commit 'd580eee29b50e1f11485b655fe5e6cc5a564615b' into gingerbread-plus-aosp

* commit 'd580eee29b50e1f11485b655fe5e6cc5a564615b':
  SipPhone: switch to its own phone type PHONE_TYPE_SIP.