m7: Change inherit order

 * Move comon_full_phone.mk to top. Otherwise default notification
   and alarm tone will be completely wrong

Please see the following changes for an explanation/source:

http://review.cyanogenmod.org/#/c/59655/
http://review.cyanogenmod.org/#/c/59973/

Change-Id: Idf0e759a941192056ad44cd8c0f540126fea8377