gpio: do not include <asm/arch/gpio.h> on ARCH_BCM63158

As no gpio.h is defined for this architecture, to avoid
a compilation failure, do not include <asm/arch/gpio.h>
for arch bcm63158.
Signed-off-by: NPhilippe Reynes <philippe.reynes@softathome.com>

arch/arm/include/asm/gpio.h

 #if !defined(CONFIG_ARCH_UNIPHIER) && !defined(CONFIG_ARCH_STI) && \
-	!defined(CONFIG_ARCH_K3) && !defined(CONFIG_ARCH_BCM6858)
+	!defined(CONFIG_ARCH_K3) && !defined(CONFIG_ARCH_BCM6858) && \
+	!defined(CONFIG_ARCH_BCM63158)
 #include <asm/arch/gpio.h>
 #endif
 #include <asm-generic/gpio.h>