GRF: Set API level flags and soc properties

- Set Board API level flags
- Set soc model and manufacturer properties

Change-Id: I9ecc1cb75a415f5df147d47234fd9d8b69e1e6b5
diff --git a/device.mk b/device.mk
index e65effe..4874541 100755
--- a/device.mk
+++ b/device.mk
@@ -37,7 +37,9 @@
 endif
 
 # Api
-PRODUCT_SHIPPING_API_LEVEL := 29
+BOARD_API_LEVEL := 29
+BOARD_SHIPPING_API_LEVEL := $(BOARD_API_LEVEL)
+PRODUCT_SHIPPING_API_LEVEL := $(BOARD_API_LEVEL)
 
 # audio
 PRODUCT_COPY_FILES += \