Add mvapich4

.gitmodules

@@ -7362,10 +7362,6 @@
 	path = googler
 	url = ../../pool/googler
 	branch = leap-16.1
-[submodule "goose"]
-	path = goose
-	url = ../../pool/goose
-	branch = leap-16.1
 [submodule "gopass"]
 	path = gopass
 	url = ../../pool/gopass
@@ -10790,6 +10786,10 @@
 	path = mustang-plug
 	url = ../../pool/mustang-plug
 	branch = leap-16.1
+[submodule "mvapich4"]
+	path = mvapich4
+	url = ../../pool/mvapich4
+	branch = leap-16.1
 [submodule "mwic"]
 	path = mwic
 	url = ../../pool/mwic