axolotl: Adoptable storage: Use CTS filenames encryption, not HEH

Test: adb shell sm set-virtual-disk true
Bug: 123297412
Change-Id: Ide44f4e59be85e081b8e12c3e1d86b4a830dda82
diff --git a/device.mk b/device.mk
index 1d48685..9f7ff90 100644
--- a/device.mk
+++ b/device.mk
@@ -197,6 +197,9 @@
     tune2fs_ramdisk \
     resize2fs_ramdisk \
 
+PRODUCT_PROPERTY_OVERRIDES += \
+    ro.crypto.volume.filenames_mode=aes-256-cts \
+
 # Fingerprint
 PRODUCT_PACKAGES += \
     android.hardware.biometrics.fingerprint@2.1-service \