x86: Add coreboot version to u-boot's version command

Since U-Boot runs from coreboot on x86, the Coreboot version is an
important part of the boot state. This version information is
available in the coreboot tables, so print it when the 'version'
command is used.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/cmd_version.c

@@ -25,6 +25,9 @@
 #include <command.h>
 #include <version.h>
 #include <linux/compiler.h>
+#ifdef CONFIG_SYS_COREBOOT
+#include <asm/arch/sysinfo.h>
+#endif
 
 const char __weak version_string[] = U_BOOT_VERSION_STRING;
 
@@ -37,7 +40,9 @@ static int do_version(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 #ifdef LD_VERSION_STRING
 	puts(LD_VERSION_STRING "\n");
 #endif
-
+#ifdef CONFIG_SYS_COREBOOT
+	printf("coreboot-%s (%s)\n", lib_sysinfo.version, lib_sysinfo.build);
+#endif
 	return 0;
 }