Add comment on brokenness of Asterisk

package/multimedia/asterisk/Config.in

@@ -1,3 +1,6 @@
+comment "asterisk	- is currently broken due to a bad patch"
+	depends on BR2_PACKAGE_ASTERISK
+
 config BR2_PACKAGE_ASTERISK
 	bool "asterisk"
 	select BR2_PACKAGE_NCURSES
@@ -10,3 +13,4 @@ config BR2_PACKAGE_ASTERISK
 comment "asterisk	- disabled (required openssl and mpg123)"
 	depends on !BR2_PACKAGE_OPENSSL || ! BR2_PACKAGE_MPG123
 
+