sh/irq: Add missing closing parentheses in arch_show_interrupts()

sh/irq: Add missing closing parentheses in arch_show_interrupts()

    arch/sh/kernel/irq.c: In function ‘arch_show_interrupts’:
    arch/sh/kernel/irq.c:47:58: error: expected ‘)’ before ‘;’ token
       47 |   seq_printf(p, "%10u ", per_cpu(irq_stat.__nmi_count, j);
	  |                                                          ^

Fixes: fe3f1d5d7cd3062c ("sh: Get rid of nmi_count()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201124130656.2741743-1-geert+renesas@glider.be