openocd: fix conversion string for stdint values

Detected while converting 'unsigned' to 'unsigned int'.

Use the correct conversion string for stdint values.

Change-Id: I99f3dff4c64dfd7acf2bddb130b56e9ebe1e6c60
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8477
Tested-by: jenkins

src/flash/nor/tms470.c

@@ -239,8 +239,8 @@ static int tms470_read_part_info(struct flash_bank *bank)
 			break;
 
 		default:
-			LOG_WARNING("Could not identify part 0x%02x as a member of the TMS470 family.",
-					(unsigned)part_number);
+			LOG_WARNING("Could not identify part 0x%02" PRIx32 " as a member of the TMS470 family.",
+					part_number);
 			return ERROR_FLASH_OPERATION_FAILED;
 	}