gpio: do not include <asm/arch/gpio.h> on ARCH_LS1028A

As no gpio.h is defined for this architecture, to avoid
compilation failure, do not include <asm/arch/gpio.h> for
arch ls1028a.
Signed-off-by: NChuanhua Han <chuanhua.han@nxp.com>
Reviewed-by: NAlex Marginean <alexm.osslist@gmail.com>
Reviewed-by: NPrabhakar Kushwaha <prabhakar.kushwaha@nxp.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_BCM63158) && !defined(CONFIG_ARCH_ROCKCHIP) && \
-	!defined(CONFIG_ARCH_LX2160A)
+	!defined(CONFIG_ARCH_LX2160A) && !defined(CONFIG_ARCH_LS1028A)
 #include <asm/arch/gpio.h>
 #endif
 #include <asm-generic/gpio.h>