cmd: version: Get information about GCC and LD back

U-Boot version command is no longer showing information about GCC and LD.
The reason is that version.h has been removed that's why CC_VERSION_STRING
and LD_VERSION_STRING are not pass.
Values are generated to generated/version_autogenerated.h which is sourced
in version.h.

Fixes: 54ecce2cbf90 ("version: Separate our version string from the version command")
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/cmd/version.c b/cmd/version.c
index 53db1a0..6240660 100644
--- a/cmd/version.c
+++ b/cmd/version.c
@@ -6,6 +6,7 @@
 
 #include <command.h>
 #include <display_options.h>
+#include <version.h>
 #include <version_string.h>
 #include <linux/compiler.h>
 #ifdef CONFIG_SYS_COREBOOT