add support for LOCAL_MODULE_STEM_32 and LOCAL_MODULE_STEM_64

Some executables will need to be built for both 32-bit and 64-bit.
For linker/linker64, debuggerd/debuggerd64, and a few more, they
will be installed in the same path (/system/bin), but with different
filenames.  Allow the module to specify LOCAL_MODULE_STEM_32 and
LOCAL_MODULE_STEM_64 to name the two versions.

Change-Id: I573e8678c7332245a064f31246be0a05f0a9e25f
diff --git a/core/dynamic_binary.mk b/core/dynamic_binary.mk
index 32f2c91..b3ca4fc 100644
--- a/core/dynamic_binary.mk
+++ b/core/dynamic_binary.mk
@@ -13,20 +13,9 @@
 endif
 
 # The name of the target file, without any path prepended.
-# TODO: This duplicates logic from base_rules.mk because we need to
-#       know its results before base_rules.mk is included.
-#       Consolidate the duplicates.
-ifndef LOCAL_MODULE_STEM
-  LOCAL_MODULE_STEM := $(LOCAL_MODULE)
-endif
-
-ifndef LOCAL_BUILT_MODULE_STEM
-  LOCAL_BUILT_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
-endif
-
-ifndef LOCAL_INSTALLED_MODULE_STEM
-  LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE_STEM)$(LOCAL_MODULE_SUFFIX)
-endif
+# This duplicates logic from base_rules.mk because we need to
+# know its results before base_rules.mk is included.
+include $(BUILD_SYSTEM)/configure_module_stem.mk
 
 # base_rules.make defines $(intermediates), but we need its value
 # before we include base_rules.  Make a guess, and verify that