make: Rework clean target in database/Makefile

* Have targets for only removing the database and not the harness /
   gridinfo tool.
 * Have seperate targets for cleaning each database.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>

database/Makefile

@@ -1,3 +1,32 @@
-clean:
-	rm -f $$(ls */* |grep -v settings.sh)
 
+DATABASE_FILES = *.csv *.db *.json *.yaml
+
+clean-artix7-db:
+	rm -f $(addprefix artix7/,$(DATABASE_FILES))
+
+clean-kintex7-db:
+	rm -f $(addprefix kintex7/,$(DATABASE_FILES))
+
+clean-zynq7-db:
+	rm -f $(addprefix zynq7/,$(DATABASE_FILES))
+
+clean-db: clean-artix7-db clean-kintex7-db clean-zynq7-db
+	@true
+
+clean: clean-db
+	@true
+
+.PHONY: clean-artix7-db clean-kintex7-db clean-zynq7-db clean-db clean
+
+reset:
+	git reset --hard
+
+.PHONY: reset
+
+update:
+	git stash
+	git fetch origin
+	git merge origin/master
+	git stash pop
+
+.PHONY: update