tools/lib/thermal: remove unneeded semicolon

Fix the following coccicheck warnings:

./tools/lib/thermal/commands.c:215:2-3: Unneeded semicolon.

Reported-by: Abaci Robot <[e-mail]>
Signed-off-by: Jiapeng Chong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Daniel Lezcano <[e-mail]>

tools/lib/thermal/commands.c

···
 
 	default:
 		return THERMAL_ERROR;
-	};
+	}
 
 	return ret;
 }