tps65218/am43xx_evm: Add power framework support to TPS65218

Add in an init function for the drivers/power framework so we can dump
and read the registers via i2c.

Cc: Ɓukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h
index 974ce98..e262040 100644
--- a/include/configs/am43xx_evm.h
+++ b/include/configs/am43xx_evm.h
@@ -33,6 +33,8 @@
 #define CONFIG_SYS_I2C_MULTI_EEPROMS
 
 /* Power */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
 #define CONFIG_POWER_TPS65218
 
 /* SPL defines. */