Properly set mtp enable variable if disabled during boot

Change-Id: Iedf08419a1fd46908e5b9186a769a0497ce62ca8
MTP Fix property list for multiple storage devices

Change-Id: Ice23fef31439a6c88d0a12380688eccd8dc3a71c
MTP Fix rename in Windows

Change-Id: Ieef2fc16aac1da3d03908cfb285895954b42a14a
MTP: Better handling of stat

Do some error checking of lstat calls and better handle those
errors.
Use lstat instead of dirent to check if an item is a directory
because dirent does not return the correct item type when using
exfat-fuse.

Change-Id: I0d008aff55a0e0b4fbeae24cf8d0c04453b7b77e
Fix reporting of folder size on exfat-fuse

Change-Id: Icfd4af21b9eeade68956e44ae89bae12398920df
MTP: Use fork instead of pthread

Change-Id: I95cf6f4def0c86f40c775738f0712323f0a0f146