sunxi: kconfig: Rename TARGET_SUN[45678]I to MACH_SUN[45678]I.

Now we have CONFIG_ARCH_SUNXI as the toplevel, CONFIG_MACH_SUN[45678]I as the
per-SoC option and leave CONFIG_TARGET_BLAH free for individual boards in the
future.

Done automatically with:
    sed -i -e 's/TARGET_\(SUN[45678]I\)/MACH_\1/g' $(git grep -l TARGET_SUN[45678]I)

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/configs/Bananapi_defconfig b/configs/Bananapi_defconfig
index 8f8853f..ec18b9f 100644
--- a/configs/Bananapi_defconfig
+++ b/configs/Bananapi_defconfig
@@ -3,4 +3,4 @@
 CONFIG_FDTFILE="sun7i-a20-bananapi.dtb"
 +S:CONFIG_ARM=y
 +S:CONFIG_ARCH_SUNXI=y
-+S:CONFIG_TARGET_SUN7I=y
++S:CONFIG_MACH_SUN7I=y