Makefile: include *.patch in check-package

Since a long time, we have a check-package check for patches. Make sure
that this check runs in 'make check-package', by including *.patch in
the find expression.

There are still a number of patches without SoB, and these are not so
trivial to fix, so for now, disable the SoB check.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Ricardo: do not run check for SoB for now]
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>

Makefile

@@ -1224,8 +1224,8 @@ check-flake8:
 	| xargs -- python3 -m flake8 --statistics
 
 check-package:
-	find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' \) \
-		-exec ./utils/check-package {} +
+	find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' -o -name '*.patch' \) \
+		-exec ./utils/check-package --exclude=Sob {} +
 
 include docs/manual/manual.mk
 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))