Fix genrules depending on Go tools

genrules lost the ability to depend on Go tools after
I05e945f38915d49cd3c0ab72a86576949bc7eff2 which converted
VisitDirectDeps from blueprint Modules to android Modules.
Add VisitDirectDepsBlueprint to visit all modules including
blueprint Modules, and use it in genrule.  Also add a check
for disabled modules that was being handled by
VisitDirectDeps.

Test: m checkbuild
Change-Id: I65724283166c63596d071e598c08fed87ef32896
diff --git a/android/module.go b/android/module.go
index 2a8837b..66859fa 100644
--- a/android/module.go
+++ b/android/module.go
@@ -108,6 +108,7 @@
 
 	ModuleSubDir() string
 
+	VisitDirectDepsBlueprint(visit func(blueprint.Module))
 	VisitDirectDeps(visit func(Module))
 	VisitDirectDepsIf(pred func(Module) bool, visit func(Module))
 	VisitDepsDepthFirst(visit func(Module))
@@ -686,6 +687,10 @@
 	return aModule
 }
 
+func (a *androidModuleContext) VisitDirectDepsBlueprint(visit func(blueprint.Module)) {
+	a.ModuleContext.VisitDirectDeps(visit)
+}
+
 func (a *androidModuleContext) VisitDirectDeps(visit func(Module)) {
 	a.ModuleContext.VisitDirectDeps(func(module blueprint.Module) {
 		if aModule := a.validateAndroidModule(module); aModule != nil {