m4: Update init scripts

 - Let ueventd worry about sysfs attribute permissions
 - Reorder and reformat ueventd config for great readability
 - Delete duplicate and nonexisting stuff
 - Add qmuxd to bluetooth group
 - Add mpdecision to system group
 - Make thermald bit more verbose
 - Reorder services alphabetically

Change-Id: I1111d24330dcdc8ddbff8e3b7bc02f07b2866953