gpio: aspeed: Remove reference to clock name in debounce warning message

HPLL is in fact not the clock we need. Remove the description of which clock we
failed to find a phandle to in order to avoid any further error.

Signed-off-by: Andrew Jeffery <[e-mail]>
Acked-by: Joel Stanley <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-aspeed.c

···
 	gpio->clk = of_clk_get(pdev->dev.of_node, 0);
 	if (IS_ERR(gpio->clk)) {
 		dev_warn(&pdev->dev,
-				"No HPLL clock phandle provided, debouncing disabled\n");
+				"Failed to get clock from devicetree, debouncing disabled\n");
 		gpio->clk = NULL;
 	}