soc: aspeed: remove unneeded semicolon

A semicolon is not needed after a switch statement.
Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20201101150622.2288203-1-trix@redhat.comSigned-off-by: Joel Stanley <joel@jms.id.au>

drivers/soc/aspeed/aspeed-socinfo.c

@@ -51,7 +51,7 @@ static const char *siliconid_to_rev(u32 siliconid)
 		return "A1";
 	case 3:
 		return "A2";
-	};
+	}
 
 	return "??";
 }