gta4xl-common: Override low latency capture duration

* Fixes low latency capture not working

Change-Id: Iecb422bb5b83307a75a1f764de66cd6763b0d88f
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index c4562c1..e70f099 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -32,6 +32,9 @@
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := cortex-a53
 
+## Audio
+BOARD_LOW_LATENCY_CAPTURE_DURATION := 20
+
 ## Bluetooth
 BOARD_HAVE_BLUETOOTH_SLSI := true