configs: Enable flag to compile test apps in vendor image

Enable COMPILE_HAL_TEST_APPS_IN_VENDOR_IMAGE flag to compile
HAL test apps and libs as part of vendor image.

CRs-Fixed: 2273661
Change-Id: I56326bff4b1c089b51428b973cb96e75ce6ec5e7
diff --git a/configs/msm8909/msm8909.mk b/configs/msm8909/msm8909.mk
index 8bc0894..e4b45eb 100644
--- a/configs/msm8909/msm8909.mk
+++ b/configs/msm8909/msm8909.mk
@@ -45,6 +45,7 @@
 AUDIO_FEATURE_DISABLED_SOUND_TRIGGER_LEGACY_HAL := true
 AUDIO_FEATURE_ENABLED_COMPRESS_INPUT := true
 AUDIO_FEATURE_ENABLED_CUSTOMSTEREO := true
+COMPILE_HAL_TEST_APPS_IN_VENDOR_IMAGE := true
 
 ##AUDIO_FEATURE_FLAGS