[automerger] SDP: return error on offset bigger than atribute length am: 3565eaf7 am: 67c78b25 am: 1c4f9c96 am: 05ba0519 am: 612ba99b am: 0e36165a am: be55f299 am: 038f86e4 Change-Id: I4d8b0fd5c2b026105e169eb35b3e34de72f5b503