set TARGET_BOARD_PLATFORM for dragonboard

410c dragonboard is a msm8916 variant, hence TARGET_BOARD_PLATFORM
needs to be set to msm8916, so that qcom vendor components can build
the correct flavor

Change-Id: Ic913ce2741e79bdd8c6e445eee7974a8891e4e22
Signed-off-by: Sourabh Banerjee <sbanerje@codeaurora.org>
diff --git a/BoardConfig.mk b/BoardConfig.mk
index e959b2f..9d18629 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -32,3 +32,5 @@
 
 BOARD_SEPOLICY_DIRS += \
     device/qcom/dragonboard/sepolicy
+
+TARGET_BOARD_PLATFORM := msm8916