sunxi: various changes
 - let LBDAF be set by generic config
 - add high-speed timer support
 - refresh sun5i USB patch

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39223 3c298f89-4303-0410-b956-a3cf2f4a3e73