Revert "[aml] Define BR2_PACKAGE_TZDATA"

The tzdata package does not copy the zone.tab file that xbmc uses.
This reverts commit 1df7dda350fc59efe29146f1407b4ffa7393cca6.
[aml] Add /run directory

udev 174 and later creates the control socket in /run/udev/control so we need to add /run to our skeleton filesystem
[aml] Fix USB mounting

* Restore usbmount-use-udev-environment-instead-of-blkid.patch (incorrectly removed in 81f69d7c8f59922146a0951a114b3ce1c73723eb)
* Remove usbmount-0001-if-devinfo-is-empty-ensure-variable-is-empty.patch because usbmount-use-udev-environment-instead-of-blkid.patch makes it redundant
* Update usbmount-0003-usbmount-use-fs-label-as-mount-point.patch to use udev environment instead of blkid
* Put scripts in /etc/usbmount/[u]mount.d instead of /etc/usbmount/usbmount.d