sandbox: Update sandbox_vpl to select sha1 and sha256

These algorithms are used in VPL, so enable them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_vpl_defconfig b/configs/sandbox_vpl_defconfig
index 4632939..f0315f6 100644
--- a/configs/sandbox_vpl_defconfig
+++ b/configs/sandbox_vpl_defconfig
@@ -252,6 +252,8 @@
 CONFIG_FS_CRAMFS=y
 # CONFIG_SPL_USE_TINY_PRINTF is not set
 CONFIG_CMD_DHRYSTONE=y
+CONFIG_VPL_SHA1_LEGACY=y
+CONFIG_VPL_SHA256_LEGACY=y
 CONFIG_RSA_VERIFY_WITH_PKEY=y
 CONFIG_TPM=y
 CONFIG_ZSTD=y