CMFM: Use filesystem type instead of auto on remount

Use the filesystem type obtained from /proc/mounts to remount the filesystem
instead of use the auto type

Change-Id: I791e099a51fec1f9f75ce94a3e879b8a6f594e4e
Signed-off-by: jruesga <jorge@ruesga.com>
Merge "CMFM: Use filesystem type instead of auto on remount" into cm-10.1