Fix USE_SOONG[_FOR_KATI]

Make was depending on the installed path for ckati/makeparallel, since I
didn't want to hardcode intermediate paths.

For modules in USE_SOONG, we export the intermediate paths, so we don't
need to install.

Change-Id: I90bf3ad1461e239a8a40fd0c8ddbc679cf00d126
diff --git a/common/config.go b/common/config.go
index a4a2039..6fd6dfc 100644
--- a/common/config.go
+++ b/common/config.go
@@ -304,6 +304,6 @@
 	return Bool(c.ProductVariables.Unbundled_build)
 }
 
-func (c *config) SkipInstall() bool {
+func (c *config) SkipDeviceInstall() bool {
 	return c.EmbeddedInMake() || Bool(c.Mega_device)
 }