gta4xlwifi: add dolby audio effect

Change-Id: Ic8089884a7347db549bd54931feb429513ca0c29
diff --git a/proprietary-files.txt b/proprietary-files.txt
index 48cbc4e..6c4764e 100644
--- a/proprietary-files.txt
+++ b/proprietary-files.txt
@@ -4,6 +4,7 @@
 vendor/etc/floating_feature.xml
 vendor/etc/mixer_gains.xml
 vendor/lib/hw/audio.primary.exynos9611.so
+vendor/lib/soundfx/libswdap.so
 
 ## Audio Firmware
 vendor/firmware/calliope_dram.bin