Add deps to files used by backwards compatibility checker

Any used files need to be in the dependencies list for rules. In this
case, this is more than what's actually read in the script, but the
older ones shouldn't change as much, and replicating the logic is
non-trivial.

Bug: 130111713
Test: run with RBE, no longer see error about file not found
Change-Id: I88baf541ce6250a5dbf7b8a7d6b8005ed7cf5cc6
diff --git a/rootdir/update_and_install_ld_config.mk b/rootdir/update_and_install_ld_config.mk
index 9d131dc..c4b8e4e 100644
--- a/rootdir/update_and_install_ld_config.mk
+++ b/rootdir/update_and_install_ld_config.mk
@@ -128,7 +128,7 @@
 deps := $(llndk_libraries_file) $(vndksp_libraries_file) $(vndkcore_libraries_file) \
   $(vndkprivate_libraries_file)
 ifeq ($(check_backward_compatibility),true)
-deps += $(compatibility_check_script)
+deps += $(compatibility_check_script) $(wildcard prebuilts/vndk/*/*/configs/ld.config.*.txt)
 endif
 ifeq ($(my_vndk_use_core_variant),true)
 $(LOCAL_BUILT_MODULE): PRIVATE_VNDK_USING_CORE_VARIANT_LIBRARIES_FILE := $(vndk_using_core_variant_libraries_file)