Update the references to verity tools.

Test: `m -j dist` with aosp_marlin-userdebug
Test: `atest releasetools_test`
Test: Run signing with otatools.
Test: TreeHugger
Change-Id: I60d5bad4435d588c5f97b2245ca67ed3d55299b7
diff --git a/core/config.mk b/core/config.mk
index 94928a2..bf59fb1 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -604,7 +604,7 @@
 BUILD_IMAGE_SRCS := $(wildcard build/make/tools/releasetools/*.py)
 APPEND2SIMG := $(HOST_OUT_EXECUTABLES)/append2simg
 VERITY_SIGNER := $(HOST_OUT_EXECUTABLES)/verity_signer
-BUILD_VERITY_METADATA := $(HOST_OUT_EXECUTABLES)/build_verity_metadata.py
+BUILD_VERITY_METADATA := $(HOST_OUT_EXECUTABLES)/build_verity_metadata
 BUILD_VERITY_TREE := $(HOST_OUT_EXECUTABLES)/build_verity_tree
 BOOT_SIGNER := $(HOST_OUT_EXECUTABLES)/boot_signer
 FUTILITY := $(HOST_OUT_EXECUTABLES)/futility-host