ARM: ks8695/og: make PCI setup conditional

The 'og' machine tries to always initialized the PCI code, but that
may be disabled in Kconfig, leading to a build error.

This patch changes the code to use the same Kconfig symbol to decide
about calling the ks8695_init_pci function at build time that we
use to decide about building the ks8695 PCI support.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>

arch/arm/mach-ks8695/board-og.c

@@ -44,6 +44,7 @@ static void __init og_register_pci(void)
 	if (machine_is_im4004())
 		ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_LOW);
 
+	if (IS_ENABLED(CONFIG_PCI))
 		ks8695_init_pci(&og_pci);
 }