drm/panel: himax-hx8279: 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 <[e-mail]>
Reviewed-by: Dmitry Baryshkov <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/gpu/drm/panel/panel-himax-hx8279.c

···
 			j++;
 			x++;
 		} while (x < 4);
-	};
+	}
 
 	return 0;
 }