pom2mk to include extra-deps as top-level deps too

Specifically, the use case is android-support-car requires some stubs that don't have a Maven pom.
So those stubs can't easily be listed as a dependency in the pom.
However, we do want the dependency to exist when importing to Make and detected by extract_deps.py

Bug: 76692459
Test: m -j blueprint_tools \
      && update_prebuilts.py -s <build_id> \
      && git diff HEAD^ -- fix_dependencies.mk \
      && m -j checkbuild

Change-Id: If546ecf7416580a01bde7b906976ada4b1145253

cmd/pom2mk/pom2mk.go

@@ -160,6 +160,10 @@ func (p Pom) MkAarDeps() []string {
 // method are formatted as Make targets, e.g. run through MavenToMk rules.
 func (p Pom) MkDeps(typeExt string, scopes []string) []string {
 	var ret []string
+	if typeExt == "jar" {
+		// all top-level extra deps are assumed to be of type "jar" until we add syntax to specify other types
+		ret = append(ret, extraDeps[p.MkName()]...)
+	}
 	for _, d := range p.Dependencies {
 		if d.Type != typeExt || !InList(d.Scope, scopes) {
 			continue