Mark (BUILD_|LOCAL_)COPY_HEADERS as [more] deprecated

We've considered these deprecated for a while, and have reduced where
they may be used, but let's actually throw warnings and call them out
specifically now.

Bug: 130719878
Test: lunch aosp_arm; m nothing   [see no warnings]
Test: lunch aosp_crosshatch; m nothing   [see LOCAL_COPY_HEADERS warnings]
Test: lunch aosp_taimen; m nothing  [see BUILD_COPY_HEADERS warnings]
Change-Id: I8c12012366d84667de0d223bbde38d8b90419e36
diff --git a/core/deprecation.mk b/core/deprecation.mk
index fd71f48..dac7e4b 100644
--- a/core/deprecation.mk
+++ b/core/deprecation.mk
@@ -1,6 +1,5 @@
 # These module types can still be used without warnings or errors.
 AVAILABLE_BUILD_MODULE_TYPES :=$= \
-  BUILD_COPY_HEADERS \
   BUILD_EXECUTABLE \
   BUILD_FUZZ_TEST \
   BUILD_HEADER_LIBRARY \
@@ -26,6 +25,7 @@
 # relevant BUILD_BROKEN_USES_BUILD_* variables, then these would move to
 # DEFAULT_ERROR_BUILD_MODULE_TYPES.
 DEFAULT_WARNING_BUILD_MODULE_TYPES :=$= \
+  BUILD_COPY_HEADERS \
   BUILD_HOST_SHARED_LIBRARY \
   BUILD_HOST_STATIC_LIBRARY \