Replace PHONE_CAR_BOARD_CONFIG with more specific PHONE_CAR_BOARD_PRODUCT
The statement
```
include $(PHONE_CAR_BOARD_CONFIG)
```
is difficult to translate to the Starlark configuration file. Fortunately,
all the potential values of this variable have have similar structure, so
```
PHONE_CAR_BOARD_CONFIG := device/google_car/foo/BoardConfig.mk
....
include $(PHONE_CARD_BOARD_CONFIG)
```
can be changed to
```
PHONE_CAR_BOARD_PRODUCT := foo
....
include device/google_car/$(PHONE_CAR_BOARD_PRODUCT)/BoardConfig.mk
```
Bug: 190051051
Test: treehugger
Change-Id: I3b6e8e1aabfb373ab84c756c109b04893d2e8481
diff --git a/raven/BoardConfig.mk b/raven/BoardConfig.mk
index c3f2cc7..4ff656e 100644
--- a/raven/BoardConfig.mk
+++ b/raven/BoardConfig.mk
@@ -14,8 +14,8 @@
# limitations under the License.
#
-ifdef PHONE_CAR_BOARD_CONFIG
- include $(PHONE_CAR_BOARD_CONFIG)
+ifdef PHONE_CAR_BOARD_PRODUCT
+ include device/google_car/$(PHONE_CAR_BOARD_PRODUCT)/BoardConfig.mk
else
TARGET_BOARD_INFO_FILE := device/google/raviole/board-info.txt
TARGET_BOOTLOADER_BOARD_NAME := raven