libhid: disable on avr32

libhid uses timerfd, which is not yet available in the uClibc-0.9.31
that we have to rely on for avr32.  Since this is pretty much a corner
case, just disable libhid for avr32.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/libhid/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_LIBHID
 	bool "libhid"
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libusb
+	depends on !BR2_avr32 # timerfd not in uClibc-0.9.31
 	select BR2_PACKAGE_LIBUSB
 	select BR2_PACKAGE_LIBUSB_COMPAT
 	help
@@ -9,4 +10,4 @@ config BR2_PACKAGE_LIBHID
 	  http://libhid.alioth.debian.org
 
 comment "libhid needs a toolchain with thread support"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS && !BR2_avr32