sunxi: Kconfig-ify CONFIG_AXP152_POWER and _AXP209_POWER

Kconfig-ify CONFIG_AXP152_POWER and _AXP209_POWER settings, removing
them from CONFIG_SYS_EXTRA_OPTIONS.

Note that sun5i boards can have either an AXP209 or an AXP152 pmic, the
Kconfig default is AXP209, boards with an AXP152 must explicitly select
this. Likewise boards without a pmic must explicitly select SUNXI_NO_PMIC
in their defconfig.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/configs/Auxtek-T003_defconfig b/configs/Auxtek-T003_defconfig
index b9692dc..5dd9a16 100644
--- a/configs/Auxtek-T003_defconfig
+++ b/configs/Auxtek-T003_defconfig
@@ -8,8 +8,8 @@
 CONFIG_DEFAULT_DEVICE_TREE="sun5i-a10s-auxtek-t003"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="AXP152_POWER"
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_CMD_FPGA is not set
 CONFIG_USB_EHCI_HCD=y
+CONFIG_AXP152_POWER=y