ARM: OMAP2+: Remove hardcoded twl4030 gpio_base, irq_base and irq_end

We can't use hardcoded interrupts for SPARSE_IRQ, and can replace
the hardcoded gpio_base with twl_gpiochip.base after it's been
allocated.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

include/linux/i2c/twl.h

@@ -561,9 +561,6 @@ struct twl4030_bci_platform_data {
 
 /* TWL4030_GPIO_MAX (18) GPIOs, with interrupts */
 struct twl4030_gpio_platform_data {
-	int		gpio_base;
-	unsigned	irq_base, irq_end;
-
 	/* package the two LED signals as output-only GPIOs? */
 	bool		use_leds;