Add reporting of whether or not a keyboard is detected. In addition,

note that r336270's commit message was slightly incorrect. It changed
the default setting of the console to honor the ConOut
variable. Overrides via the command line are still possible, and we
use the devices in ConOut to set the proper console. If, for example,
serial cosnole is specified, we'll set console to "efi" if ConOut has
a serial port list and to either "efi comconsole" or "comconsole efi"
if not depending on whether -D or -D -h was specified.

RelNotes: Yes
Sponsored by: Netflix

stand/efi/loader/main.c

@@ -622,6 +622,8 @@ main(int argc, CHAR16 *argv[])
 	 */
 	boot_howto_to_env(howto);
 	
+	printf("  Keyboard: %s", has_kbd ? "yes" : "no");
+
 	if (efi_copy_init()) {
 		printf("failed to allocate staging area\n");
 		return (EFI_BUFFER_TOO_SMALL);