soong-ui: Redirect mm to mma.

This is the first part of deprecating the mm command. mm will simply
be redirected to mma by building the modules and their dependencies.

Bug: b/135187558
Test: Ran mm in external/protobuf directory.
Change-Id: Idad40f89e3768aeb459172f632a44fd7b0a201bc
diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index 4d59a39..c4f24ff 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -342,10 +342,13 @@
 		action:            build.BUILD_MODULES,
 		buildDependencies: true,
 	}, {
+		// buildDependencies is set to true as mm is being deprecated. This is redirecting to mma build
+		// command behaviour. Once it has soaked for a while, the build command is deleted from here once
+		// it has been removed from the envsetup.sh.
 		name:              "modules-in-a-dir-no-deps",
 		description:       "Build action: builds all of the modules in the current directory without their dependencies.",
 		action:            build.BUILD_MODULES_IN_A_DIRECTORY,
-		buildDependencies: false,
+		buildDependencies: true,
 	}, {
 		name:              "modules-in-dirs-no-deps",
 		description:       "Build action: builds all of the modules in the supplied directories without their dependencies.",