Access ALL_MODULES subvars with my_register_name

ALL_MODULES and subvars are registered with my_register_name.
Replace references of ALL_MODULES.$(LOCAL_MODULE).* with
ALL_MODULES.$(my_register_name).*.

Bug: 155869107
Test: TH presubmit build pass
Test: TH presubmit build noop
Change-Id: I1481c341a285dc04de86619abec3194bb92c9739
diff --git a/core/soong_app_prebuilt.mk b/core/soong_app_prebuilt.mk
index 4197c58..09c79f6 100644
--- a/core/soong_app_prebuilt.mk
+++ b/core/soong_app_prebuilt.mk
@@ -167,7 +167,7 @@
 PACKAGES.$(LOCAL_MODULE).PARTITION := $(actual_partition_tag)
 
 ifdef LOCAL_SOONG_BUNDLE
-  ALL_MODULES.$(LOCAL_MODULE).BUNDLE := $(LOCAL_SOONG_BUNDLE)
+  ALL_MODULES.$(my_register_name).BUNDLE := $(LOCAL_SOONG_BUNDLE)
 endif
 
 ifndef LOCAL_IS_HOST_MODULE