irqchip/irq-omap-intc: Do not statically initialize variables

irqchip/irq-omap-intc: Do not statically initialize variables

omap_nr_pending and omap_nr_irqs variables are initialized
right at the beginning of intc_of_init function, so there's
no need to statically initialize them.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Link: https://lkml.kernel.org/r/20171016161303.veumgcd3xom5c54r@lenoch