huashan: full_huashan - change device model name to use real retail name

Sorry about patch spam

as suggested by http://forum.xda-developers.com/showpost.php?p=52511432&postcount=780 we should correct this overide.

this patch does not affect functionality of device (just change the name identified in Android in build.prop)

Change-Id: I20fbcc99d0572488ac8d2b532fd01e29db1e098d