sm8450-common: Enable TDES support when Keymaster 4.0 is enabled

Add ro.hardware.keystore_desede to property list to pass
CtsSecurityTestCases TDES related tests.

Change-Id: I02e34e93b52f82546dffc2c4f2cce78671885310

properties/vendor.prop

@@ -167,6 +167,9 @@ vendor.gralloc.disable_ubwc=0
 # Incremental
 ro.incremental.enable=yes
 
+# Keystore
+ro.hardware.keystore_desede=true
+
 # Media
 debug.c2.use_dmabufheaps=1
 debug.stagefright.c2inputsurface=-1