test_firmware: Fix spelling mistake "EMTPY" -> "EMPTY"

There are spelling mistakes in config show text. Fix these.
Signed-off-by: NColin Ian King <colin.i.king@gmail.com>
Reviewed-by: NRuss Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20220928211637.62529-1-colin.i.king@gmail.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

lib/test_firmware.c

@@ -284,7 +284,7 @@ static ssize_t config_show(struct device *dev,
 				test_fw_config->name);
 	else
 		len += scnprintf(buf + len, PAGE_SIZE - len,
-				"name:\tEMTPY\n");
+				"name:\tEMPTY\n");
 
 	len += scnprintf(buf + len, PAGE_SIZE - len,
 			"num_requests:\t%u\n", test_fw_config->num_requests);
@@ -315,7 +315,7 @@ static ssize_t config_show(struct device *dev,
 				test_fw_config->upload_name);
 	else
 		len += scnprintf(buf + len, PAGE_SIZE - len,
-				"upload_name:\tEMTPY\n");
+				"upload_name:\tEMPTY\n");
 
 	mutex_unlock(&test_fw_mutex);