Disable module for pure AOSP configuration

Module requires framework changes not supported by
pure AOSP configuration.  Also fix const char*/char*
assignment in libqcomfm_jni.

Change-Id: I71d125230cd772725ecc27ea346c911ea2505e7e
diff --git a/jni/ConfFileParser.cpp b/jni/ConfFileParser.cpp
index ae8b15e..1644585 100644
--- a/jni/ConfFileParser.cpp
+++ b/jni/ConfFileParser.cpp
@@ -789,7 +789,7 @@
   const char *cur_grp
 )
 {
-  char *equal_start;
+  const char *equal_start;
   char *key;
   char *val;
   unsigned key_len;