samba: make proto first to allow parallel build afterwards

This patch fixes parallel build of Samba. The trick is to make proto before
executing a full make.

Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>

package/samba/samba.mk

@@ -60,7 +60,8 @@ $(SAMBA_DIR)/.configured: $(SAMBA_DIR)/.unpacked
 	touch $@
 
 $(SAMBA_DIR)/$(SAMBA_BINARY): $(SAMBA_DIR)/.configured
-	$(MAKE1) -C $(SAMBA_DIR)
+	$(MAKE) -C $(SAMBA_DIR) proto
+	$(MAKE) -C $(SAMBA_DIR)
 
 SAMBA_TARGETS_ :=
 SAMBA_TARGETS_y :=