some graphic changes

Change-Id: If3b216820a57ffe49188b0343c4fed9db874ed12
some graphic changes

Change-Id: I4edfead2885fd5441714dd435480267aa380eafb
bluetooth changes

Change-Id: I4dd750ad912bd807073d168962ffb9f58c5972f4
cpu freq settings

Change-Id: I3ae0bcebc7776ac1faa1538296a4ac263ebca96a