x86: more AT&T fixes for #458 reported by Ruslan Kabatsayev
x86: more AT&T fixes for #458 reported by Ruslan Kabatsayev

pombredanne/capstone,pranith/capstone,bigendiansmalls/capstone,bughoho/capstone,bigendiansmalls/capstone,bSr43/capstone,AmesianX/capstone,bughoho/capstone,capturePointer/capstone,bSr43/capstone,code4bones/capstone,code4bones/capstone,dynm/capstone,capturePointer/capstone,07151129/capstone,pombredanne/capstone,dynm/capstone,dynm/capstone,pombredanne/capstone,AmesianX/capstone,angelabier1/capstone,angelabier1/capstone,dynm/capstone,dynm/capstone,bigendiansmalls/capstone,capturePointer/capstone,bigendiansmalls/capstone,pombredanne/capstone,bughoho/capstone,AmesianX/capstone,AmesianX/capstone,AmesianX/capstone,dynm/capstone,pranith/capstone,AmesianX/capstone,bughoho/capstone,07151129/capstone,angelabier1/capstone,07151129/capstone,code4bones/capstone,bSr43/capstone,07151129/capstone,code4bones/capstone,capturePointer/capstone,pranith/capstone,bigendiansmalls/capstone,code4bones/capstone,07151129/capstone,angelabier1/capstone,AmesianX/capstone,07151129/capstone,bSr43/capstone,angelabier1/capstone,pranith/capstone,angelabier1/capstone,pombredanne/capstone,capturePointer/capstone,bughoho/capstone,angelabier1/capstone,bigendiansmalls/capstone,code4bones/capstone,pranith/capstone,bigendiansmalls/capstone,pranith/capstone,bughoho/capstone,07151129/capstone,dynm/capstone,bSr43/capstone,code4bones/capstone,capturePointer/capstone,pranith/capstone,bSr43/capstone,bSr43/capstone,pombredanne/capstone,capturePointer/capstone,pombredanne/capstone,bughoho/capstone