dm: sandbox: Enable cbfs and cramfs

Enable these two filesystems to provide better build coverage in sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

include/configs/sandbox.h

@@ -44,6 +44,9 @@
 #define CONFIG_CMD_FAT
 #define CONFIG_CMD_EXT4
 #define CONFIG_CMD_EXT4_WRITE
+#define CONFIG_CMD_CBFS
+#define CONFIG_CMD_CRAMFS
+#define CONFIG_CRAMFS_CMDLINE
 #define CONFIG_CMD_PART
 #define CONFIG_DOS_PARTITION
 #define CONFIG_HOST_MAX_DEVICES 4