storm: add support for WW with new memory (NT5CC256M16DP-DI)

Whirlwind with new memory report board ID 4.

BUG=chrome-os-partner:46330, chrome-os-partner:47200
BRANCH=None
TEST=When booted on the new WW board, the board ID is
displayed as 4 and the device tree choosen is
"google,whirlwind-sp5". The board boots successfully.

Change-Id: I6e655f60b5192cf441129eba780929b98e218f8b
Signed-off-by: Suresh Rajashekara <sureshraj@google.com>
Reviewed-on: https://chromium-review.googlesource.com/322481
Reviewed-by: Kan Yan <kyan@google.com>
Commit-Queue: Suresh Rajashekara <sureshraj@chromium.org>
Tested-by: Suresh Rajashekara <sureshraj@chromium.org>
diff --git a/src/board/storm/board.c b/src/board/storm/board.c
index 2f50e3a..b0256cf 100644
--- a/src/board/storm/board.c
+++ b/src/board/storm/board.c
@@ -72,6 +72,7 @@
 		break;
 
 	case BOARD_ID_WHIRLWIND_SP5:
+	case BOARD_ID_WW_NT5CC256M16DP_DI:
 		bdescriptor.compat_string = "google,whirlwind-sp5";
 		bdescriptor.calibration_needed = 1;
 		break;
diff --git a/src/board/storm/board.h b/src/board/storm/board.h
index 7716b5e..522fb2f 100644
--- a/src/board/storm/board.h
+++ b/src/board/storm/board.h
@@ -38,6 +38,7 @@
 	BOARD_ID_PROTO_0_2 = 1,
 	BOARD_ID_WHIRLWIND_SP3 = 2,
 	BOARD_ID_WHIRLWIND_SP5 = 3,
+	BOARD_ID_WW_NT5CC256M16DP_DI = 4,
 	BOARD_ID_ARKHAM_PROTO = 6,
 };