package/samba4: AD DC needs python3

python3 is mandatory since version 4.11 and
https://gitlab.com/samba-team/samba/commit/63d20d7822ead1626f7cb41fdbae6c9300893314

As a result, AD DC needs python3

Fixes:
 - http://autobuild.buildroot.org/results/7af629b8acc92c81e006b1b87ae9a6fd461cf96d

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/samba4/Config.in

@@ -31,10 +31,14 @@ if BR2_PACKAGE_SAMBA4
 
 config BR2_PACKAGE_SAMBA4_AD_DC
 	bool "AD DC"
+	depends on BR2_PACKAGE_PYTHON3
 	select BR2_PACKAGE_JANSSON
 	help
 	  Enable Active Directory Domain Controller functionality.
 
+comment "AD DC depends on python3"
+	depends on !BR2_PACKAGE_PYTHON3
+
 config BR2_PACKAGE_SAMBA4_ADS
 	bool "ADS"
 	select BR2_PACKAGE_OPENLDAP