crda: disable on NIOS II

Building crda on NIOS II triggers the infamous _gp linker issue. Since
nobody cared, let's disable this package on NIOS II for the moment.

Fixes:

  http://autobuild.buildroot.net/results/272/272f18410e4855ab6b3bfd8a44243c1ebecf6abe/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/crda/Config.in

@@ -5,6 +5,8 @@ config BR2_PACKAGE_CRDA
 	select BR2_PACKAGE_LIBNL
 	# regdb is a runtime dependency
 	select BR2_PACKAGE_WIRELESS_REGDB
+	# Triggers the _gp link issue
+	depends on !BR2_nios2
 	help
 	  Central Regulatory Domain Agent.
 
@@ -17,3 +19,4 @@ config BR2_PACKAGE_CRDA
 
 comment "crda needs a toolchain w/ threads"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_nios2