Refresh patches. Remove upstreamed patches: - ramips/0067-enable-mt7621-xhci.patch - ramips/0085-pinmux-util.patch - ramips/301-fix-rt3883.patch Compile-tested on brcm2708/bcm2708, octeon, ramips/mt7621, x86/64. Runtime-tested on brcm2708/bcm2708, octeon, ramips/mt7621, x86/64. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>