Restrict characters in module names

See the Changes.md documentation for more information.

Test: build_test on downstream branches
Change-Id: I1524b1dbfd44a7feac3b9a212f37986f870bd837
diff --git a/core/configure_module_stem.mk b/core/configure_module_stem.mk
index 48b7787..30df8ea 100644
--- a/core/configure_module_stem.mk
+++ b/core/configure_module_stem.mk
@@ -1,20 +1,26 @@
 my_multilib_stem := $(LOCAL_MODULE_STEM_$(if $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)IS_64_BIT),64,32))
 ifdef my_multilib_stem
   my_module_stem := $(my_multilib_stem)
+  $(call verify-module-stem,my_multilib_stem)
 else ifdef LOCAL_MODULE_STEM
   my_module_stem := $(LOCAL_MODULE_STEM)
+  $(call verify-module-stem,LOCAL_MODULE_STEM)
 else
   my_module_stem := $(LOCAL_MODULE)
 endif
 
 ifdef LOCAL_BUILT_MODULE_STEM
   my_built_module_stem := $(LOCAL_BUILT_MODULE_STEM)
+  $(call verify-module-stem,LOCAL_BUILT_MODULE_STEM)
 else
   my_built_module_stem := $(my_module_stem)$(LOCAL_MODULE_SUFFIX)
+  $(call verify-module-stem,LOCAL_MODULE_SUFFIX)
 endif
 
 ifdef LOCAL_INSTALLED_MODULE_STEM
   my_installed_module_stem := $(LOCAL_INSTALLED_MODULE_STEM)
+  $(call verify-module-stem,LOCAL_INSTALLED_MODULE_STEM)
 else
   my_installed_module_stem := $(my_module_stem)$(LOCAL_MODULE_SUFFIX)
+  $(call verify-module-stem,LOCAL_MODULE_SUFFIX)
 endif