samba4: disable for avr32

The toolchain is not up to the task, fixes:
http://autobuild.buildroot.net/results/21f/21f5fd1fc8415abff1d1178843586956ef1fd1e3/
Also AVR32s are low on resources (RAM, no proper storage port, most of
them short of flash) to handle it.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/samba4/Config.in

@@ -6,6 +6,7 @@ config BR2_PACKAGE_SAMBA4
 	depends on BR2_USE_WCHAR # e2fsprogs
 	depends on BR2_LARGEFILE
 	depends on BR2_TOOLCHAIN_HAS_THREADS # talloc python threads
+	depends on !BR2_avr32 # bad toolchain
 	select BR2_PACKAGE_E2FSPROGS
 	select BR2_PACKAGE_POPT
 	select BR2_PACKAGE_PYTHON