sunxi: Use CONFIG_MACH_SUN?I from Kconfig instead of CONFIG_SUN?I

Mostly automatic with:
    sed -i -e 's/CONFIG_\(SUN[45678]I\)/CONFIG_MACH_\1/g' $(git grep -l CONFIG_SUN[45678]I)
followed by removing the relevant #defines from include/configs/sun?i.h by
hand.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/include/asm/arch-sunxi/watchdog.h b/arch/arm/include/asm/arch-sunxi/watchdog.h
index ccc8fa3..8108be9 100644
--- a/arch/arm/include/asm/arch-sunxi/watchdog.h
+++ b/arch/arm/include/asm/arch-sunxi/watchdog.h
@@ -13,7 +13,7 @@
 #define WDT_CTRL_RESTART	(0x1 << 0)
 #define WDT_CTRL_KEY		(0x0a57 << 1)
 
-#if defined(CONFIG_SUN4I) || defined(CONFIG_SUN5I) || defined(CONFIG_SUN7I)
+#if defined(CONFIG_MACH_SUN4I) || defined(CONFIG_MACH_SUN5I) || defined(CONFIG_MACH_SUN7I)
 
 #define WDT_MODE_EN		(0x1 << 0)
 #define WDT_MODE_RESET_EN	(0x1 << 1)