sunxi: Add axp209 pmic support

Add support for the x-powers axp209 pmic which is found on most A10, A13 and
A20 boards.

And enable AXP209 support for the Cubietruck and Cubieboard boards.

Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 42b0d2e..4083388 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -169,6 +169,11 @@
 #define CONFIG_SYS_I2C_SLAVE		0x7f
 #define CONFIG_CMD_I2C
 
+/* PMU */
+#if defined CONFIG_AXP152_POWER || defined CONFIG_AXP209_POWER || defined CONFIG_AXP221_POWER
+#define CONFIG_SPL_POWER_SUPPORT
+#endif
+
 #ifndef CONFIG_CONS_INDEX
 #define CONFIG_CONS_INDEX              1       /* UART0 */
 #endif