Make support for rust modules from Soong.

Support for rust modules built in Soong.

Bug: 136189233
Test: Test module builds.
Test: crosvm builds.
Change-Id: Idf2e4a4f760cbcee1d35fe6567ef8e12d4855094
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 2e24eb9..b98027d 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -80,6 +80,7 @@
 LOCAL_DROIDDOC_TEMPLATE_DIR:=
 LOCAL_DROIDDOC_USE_STANDARD_DOCLET:=
 LOCAL_DX_FLAGS:=
+LOCAL_DYLIB_LIBRARIES:=
 LOCAL_EMMA_COVERAGE_FILTER:=
 LOCAL_EMMA_INSTRUMENT:=
 LOCAL_ENFORCE_USES_LIBRARIES:=
@@ -214,6 +215,7 @@
 LOCAL_PRESUBMIT_DISABLED:=
 LOCAL_PRIVATE_PLATFORM_APIS:=
 LOCAL_PRIVILEGED_MODULE:=
+LOCAL_PROC_MACRO_LIBRARIES:=
 # '',full,custom,disabled,obfuscation,optimization
 LOCAL_PRODUCT_MODULE:=
 # TODO(b/135957588) Remove LOCAL_PRODUCT_SERVICES_MODULE
@@ -241,6 +243,7 @@
 LOCAL_REQUIRED_MODULES:=
 LOCAL_RES_LIBRARIES:=
 LOCAL_RESOURCE_DIR:=
+LOCAL_RLIB_LIBRARIES:=
 LOCAL_RMTYPEDEFS:=
 LOCAL_RRO_THEME:=
 LOCAL_RTTI_FLAG:=