Fix mm and mmm in Android.bp directories

mm and mmm were not parsing out/soong/Android.mk, so they were ignoring
all modules defined in an Android.bp file.  Always include
out/soong/Android.mk when ONE_SHOT_MAKEFILE is set, and convert the mm
and mmm functions to build MODULES-IN-$DIR instead of all_modules so
that only the subset of modules defined in out/soong/Android.mk for the
requested directory are built.

Bug: 28986194
Change-Id: I6e1ff8cacfc668a4154a0d5937450db840bb7a6b
diff --git a/buildspec.mk.default b/buildspec.mk.default
index 3224d1a..714344c 100644
--- a/buildspec.mk.default
+++ b/buildspec.mk.default
@@ -105,4 +105,4 @@
 # variable will be changed.  After you have modified this file with the new
 # changes (see buildspec.mk.default), update this to the new value from
 # buildspec.mk.default.
-BUILD_ENV_SEQUENCE_NUMBER := 10
+BUILD_ENV_SEQUENCE_NUMBER := 11