package/pkg-generic.mk: require git on the host for packages using cargo/go vendoring

The vendoring done for cargo / go packages (may) need git, so ensure we
check for it in dependencies, similar to how it is done for packages
directly using git.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 8c8ee42bbe6ebb7f20978b06a581c42733197ae2)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pkg-generic.mk

@@ -1250,6 +1250,13 @@ else ifeq ($$($(2)_SITE_METHOD),cvs)
 DL_TOOLS_DEPENDENCIES += cvs
 endif # SITE_METHOD
 
+# cargo/go vendoring (may) need git
+ifeq ($$($(2)_DOWNLOAD_POST_PROCESS),cargo)
+DL_TOOLS_DEPENDENCIES += git
+else ifeq ($$($(2)_DOWNLOAD_POST_PROCESS),go)
+DL_TOOLS_DEPENDENCIES += git
+endif
+
 DL_TOOLS_DEPENDENCIES += $$(call extractor-system-dependency,$$($(2)_SOURCE))
 
 # Ensure all virtual targets are PHONY. Listed alphabetically.