package/libbsd: disable for nds32

There is no support for nds32 in libbsd.

Fixes:
  http://autobuild.buildroot.net/results/eb79fbd8283f62ca08b85d851e3c817e0354f85c/

Signed-off-by: Nylon Chen <nylon7@andestech.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libbsd/Config.in

@@ -5,6 +5,7 @@ config BR2_PACKAGE_LIBBSD_ARCH_SUPPORTS
 	depends on !BR2_microblaze
 	depends on !BR2_arc
 	depends on !BR2_xtensa
+	depends on !BR2_nds32
 	# uClibc on noMMU doesn't provide __register_atfork()
 	depends on !(BR2_TOOLCHAIN_USES_UCLIBC && !BR2_USE_MMU)