[arm] fix decoder ambiguity with ldrh/bic
[arm] fix decoder ambiguity with ldrh/bic

futurecore/pydgin,cornell-brg/pydgin,moreati/pydgin,futurecore/pydgin,futurecore/pydgin,futurecore/pydgin,moreati/pydgin,moreati/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,moreati/pydgin