universal7904: Enable duration based amplitude control

* https://review.lineageos.org/c/LineageOS/android_hardware_samsung/+/356121

Change-Id: Icead9969bff7ae9e19a131d3aa2d9d27046bb41c
diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index 1e74598..8677f0c 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -87,6 +87,9 @@
 # Vendor
 TARGET_COPY_OUT_VENDOR := vendor
 
+# Vibrator
+$(call soong_config_set,samsungVibratorVars,duration_amplitude,true)
+
 # VNDK
 BOARD_VNDK_VERSION := current