matrix: define LOCAL_MODULE for all modules.

Test: m framework_compatibility_matrix -j
Bug: 65028233
Change-Id: Iab61771b8ebe0e1b771404bb25a0a04caf399585
diff --git a/compatibility_matrices/compatibility_matrix.mk b/compatibility_matrices/compatibility_matrix.mk
index abc6796..2d6c5d0 100644
--- a/compatibility_matrices/compatibility_matrix.mk
+++ b/compatibility_matrices/compatibility_matrix.mk
@@ -25,12 +25,12 @@
 
 # $(warning $(call remove-minor-revision,3.18.0))
 
-ifndef LOCAL_MODULE_STEM
-$(error LOCAL_MODULE_STEM must be defined.)
+ifndef LOCAL_MODULE
+$(error LOCAL_MODULE must be defined.)
 endif
 
-ifndef LOCAL_MODULE
-LOCAL_MODULE := framework_$(LOCAL_MODULE_STEM)
+ifndef LOCAL_MODULE_STEM
+LOCAL_MODULE_STEM := $(LOCAL_MODULE)
 endif
 
 ifndef LOCAL_MODULE_CLASS