vboot2: misc higher-level routines, part 2

I'm breaking the last chunk of vboot2 into smaller pieces as I add
tests.  This has the higher-level routines for verifying keyblock and
preamble.

BUG=chromium:370082
BRANCH=none
TEST=make clean && VBOOT2=1 COV=1 make

Change-Id: I82da9542c8857a3f89a85f206c9f5aecadf94a79
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/203501
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
diff --git a/Makefile b/Makefile
index d4d004d..326ba47 100644
--- a/Makefile
+++ b/Makefile
@@ -575,6 +575,7 @@
 	tests/vb2_common2_tests \
 	tests/vb2_common3_tests \
 	tests/vb2_misc_tests \
+	tests/vb2_misc2_tests \
 	tests/vb2_nvstorage_tests \
 	tests/vb2_rsa_padding_tests \
 	tests/vb2_rsa_utility_tests \
@@ -1106,6 +1107,7 @@
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_common2_tests ${TEST_KEYS}
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_common3_tests ${TEST_KEYS}
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_misc_tests
+	${RUNTEST} ${BUILD_RUN}/tests/vb2_misc2_tests
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_nvstorage_tests
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_rsa_utility_tests
 	${RUNTEST} ${BUILD_RUN}/tests/vb2_secdata_tests