Diable memtag_stack on fullmte builds.

memtag_stack currently has a miscompile on main that prevents boot. Diable memtag_stack on fullmte builds until a new toolchain gets rolled that has the fixes.

Bug: 292478827
Bug: 301328082
Change-Id: I59af848b556088d71971dd1b6d7cc02ef61641b6
Test: Build and boot fullmte off main.
diff --git a/target/product/fullmte.mk b/target/product/fullmte.mk
index d47c685..5726c06 100644
--- a/target/product/fullmte.mk
+++ b/target/product/fullmte.mk
@@ -20,7 +20,8 @@
 # For more details, see:
 # https://source.android.com/docs/security/test/memory-safety/arm-mte
 ifeq ($(filter memtag_heap,$(SANITIZE_TARGET)),)
-  SANITIZE_TARGET := $(strip $(SANITIZE_TARGET) memtag_heap memtag_stack)
+  # TODO(b/292478827): Re-enable memtag_stack when new toolchain rolls.
+  SANITIZE_TARGET := $(strip $(SANITIZE_TARGET) memtag_heap)
   SANITIZE_TARGET_DIAG := $(strip $(SANITIZE_TARGET_DIAG) memtag_heap)
 endif
 PRODUCT_PRODUCT_PROPERTIES += persist.arm64.memtag.default=sync