Add make target for cleaning deps of deps, like ra, osiris, etc.

This is helpful when we want to ensure a clean slate, which is what
happens when deps of deps go out of sync, and builds / tests start
failing for unexpected reasons.

Signed-off-by: Gerhard Lazu <gerhard@lazu.co.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index a7c97eb1ef..239591120b 100644
--- a/Makefile
+++ b/Makefile
@@ -347,6 +347,9 @@ clean-unpacked-source-dist:
 		fi; \
 	done
 
+clean-deps:
+	git clean -xfffd deps
+
 # --------------------------------------------------------------------
 # Packaging.
 # --------------------------------------------------------------------