board/BuR/common: Take usage of am335x LCD-Display

a summary screen to the lcd.
Values are taken from environment and or devicetree blob.

Signed-off-by: Hannes Petermaier <oe5hpm@oevsv.at>
diff --git a/include/power/tps65217.h b/include/power/tps65217.h
index 297c4cb..93cbe36 100644
--- a/include/power/tps65217.h
+++ b/include/power/tps65217.h
@@ -73,6 +73,7 @@
 #define TPS65217_LDO_VOLTAGE_OUT_1_8		0x06
 #define TPS65217_LDO_VOLTAGE_OUT_3_3		0x1F
 
+#define TPS65217_PWR_OFF			0x80
 #define TPS65217_PWR_SRC_USB_BITMASK		0x4
 #define TPS65217_PWR_SRC_AC_BITMASK		0x8