Multisim property name change

Change the multisim property from persist.multisim.config
to persist.radio.multisim.config

Change-Id: Id0f2a2dbf30e88900bcc360c4a9cede2a8cae889
Merge "Multisim property name change"
Merge 6cb29a3ca6296e82653e461dbc2fb7d0aea0c5c9 on remote branch

Change-Id: I731f1215e40dbc076d7cea30731dde28bb8710f9
Merge "Merge 6cb29a3ca6296e82653e461dbc2fb7d0aea0c5c9 on remote branch"