board-info: Call sysinfo_detect() before sysinfo_get_str()

The sysinfo_get_str() implementation checks whether the sysinfo was even
detected. In U-Boot proper, sysinfo_detect() is not called anywhere but
on one specific board. Call sysinfo_detect() before sysinfo_get_str() to
make sure the sysinfo is detected and sysinfo_get_str() returns valid
value instead of -EPERM.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

common/board_info.c

@@ -32,10 +32,14 @@ int __weak show_board_info(void)
 		if (IS_ENABLED(CONFIG_SYSINFO)) {
 			/* This might provide more detail */
 			ret = sysinfo_get(&dev);
-			if (!ret)
-				ret = sysinfo_get_str(dev,
+			if (!ret) {
+				ret = sysinfo_detect(dev);
+				if (!ret) {
+					ret = sysinfo_get_str(dev,
 						      SYSINFO_ID_BOARD_MODEL,
 						      sizeof(str), str);
+				}
+			}
 		}
 
 		/* Fail back to the main 'model' if available */