gpio: intel-mid: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-intel-mid.c

@@ -353,15 +353,15 @@ static void intel_mid_irq_init_hw(struct intel_mid_gpio *priv)
 	}
 }
 
-static int intel_gpio_irq_map(struct irq_domain *d, unsigned int virq,
-			    irq_hw_number_t hw)
+static int intel_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+			    irq_hw_number_t hwirq)
 {
 	struct intel_mid_gpio *priv = d->host_data;
 
-	irq_set_chip_and_handler_name(virq, &intel_mid_irqchip,
+	irq_set_chip_and_handler_name(irq, &intel_mid_irqchip,
 				      handle_simple_irq, "demux");
-	irq_set_chip_data(virq, priv);
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_chip_data(irq, priv);
+	irq_set_irq_type(irq, IRQ_TYPE_NONE);
 
 	return 0;
 }