futility: extract verify_kernel command to an external test

The verify_kernel command is used only in a host-side test. It
doesn't need to be built into futility. This makes it a separate
executable used just for that test.

BUG=chromium:231547
BRANCH=none
TEST=make runtests

Note that the load_kernel_tests.sh still passes, using the
external verify_kernel executable.

Change-Id: I309d2561d65af7eb4f3708e9bc024852238deeec
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/235480
Reviewed-by: Randall Spangler <rspangler@chromium.org>
diff --git a/Makefile b/Makefile
index f18051c..9b1c2aa 100644
--- a/Makefile
+++ b/Makefile
@@ -596,7 +596,6 @@
 	futility/cmd_vbutil_kernel.c \
 	futility/cmd_vbutil_key.c \
 	futility/cmd_vbutil_keyblock.c \
-	futility/cmd_verify_kernel.c \
 	futility/traversal.c \
 	futility/vb1_helper.c
 
@@ -662,6 +661,7 @@
 	tests/vboot_firmware_tests \
 	tests/vboot_kernel_tests \
 	tests/vboot_nvstorage_test \
+	tests/verify_kernel \
 	tests/futility/binary_editor \
 	tests/futility/test_not_really
 
@@ -1130,6 +1130,7 @@
 ${BUILD}/tests/vboot_common3_tests: LDLIBS += ${CRYPTO_LIBS}
 ${BUILD}/tests/vb20_common2_tests: LDLIBS += ${CRYPTO_LIBS}
 ${BUILD}/tests/vb20_common3_tests: LDLIBS += ${CRYPTO_LIBS}
+${BUILD}/tests/verify_kernel: LDLIBS += ${CRYPTO_LIBS}
 
 ${TEST21_BINS}: LDLIBS += ${CRYPTO_LIBS}