Vboot Reference: Move test key generation to a separate script and add sample test keys.

src/platform/vboot_reference/tests/Makefile

Index: src/platform/vboot_reference/tests/Makefile
diff --git a/src/platform/vboot_reference/tests/Makefile b/src/platform/vboot_reference/tests/Makefile
index ba4c4a64f22df46b2a8f7c3b66a76500693a596b..4d5f969e4f3888b04d9ece47d73c063425fca1c7 100644
--- a/src/platform/vboot_reference/tests/Makefile
+++ b/src/platform/vboot_reference/tests/Makefile
@@ -2,14 +2,17 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-SRCS=sha_tests.c
-OBJS=$(SRCS:.c=.o)
-LIBS=$(TOP)/crypto/libcrypto.a $(TOP)/common/libcommon.a
+CC ?= gcc
+CFLAGS = -Wall -ansi
+INCLUDES ?= -I../include/
+TOP ?= ../
 
-tests:	sha_tests
+LIBS = $(TOP)/crypto/libcrypto.a $(TOP)/common/libcommon.a
+
+tests: sha_tests
 
 sha_tests: sha_tests.c
 	$(CC) $(CFLAGS) -DNDEBUG $(INCLUDES) $< -o $@ $(LIBS)
 
 clean:
-	rm -f $(OBJS) sha_tests verify_data signature_digest
+	rm -f sha_tests