regulator: tps6594-regulator: Remove unneeded semicolon

Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20250729040044.1851988-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: Chen Ni

drivers/regulator/tps6594-regulator.c

@@ -647,7 +647,7 @@ static int tps6594_regulator_probe(struct platform_device *pdev)
 	default:
 		dev_err(tps->dev, "unknown chip_id %lu\n", tps->chip_id);
 		return -EINVAL;
-	};
+	}
 
 	enum {
 		MULTI_BUCK12,