crypto: ccp - remove unneeded semicolon

Eliminate the following coccicheck warning:
./drivers/crypto/ccp/sev-dev.c:263:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/ccp/sev-dev.c

@@ -260,7 +260,7 @@ static void sev_write_init_ex_file_if_required(int cmd_id)
 		break;
 	default:
 		return;
-	};
+	}
 
 	sev_write_init_ex_file();
 }