Makefile: fix target-finalize rule

Fix a bug introduced by the commit a24877586a566e052897e50e6a0c2f53cfb029f5
(Makefile: add support for top-level parallel make).

That commit put a new rule inside the target-finalize rule so it was
erroneously splitted in two parts.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Acked-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Makefile

@@ -507,6 +507,8 @@ endif
 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print
 
+$(TARGETS_ROOTFS): target-finalize
+
 target-finalize: $(TARGETS)
 	rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
@@ -534,8 +536,6 @@ endif
 		find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
 		xargs -r $(KSTRIPCMD); fi
 
-$(TARGETS_ROOTFS): target-finalize
-
 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 # besides the one in which crash occurred; or SIGTRAP kills my program when
 # I set a breakpoint"