package/dovecot: Fix broken logic for comment display

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/dovecot/Config.in

@@ -55,4 +55,4 @@ endif # BR2_PACKAGE_DOVECOT
 
 comment "dovecot needs a toolchain w/ dynamic library"
 	depends on BR2_USE_MMU
-	depends on !BR2_STATIC_LIBS
+	depends on BR2_STATIC_LIBS