ASCI: Update commit hash of titan.ProtocolModules.MobileL3_v13.4.0

After fixing GCC and BCC transaction ID, the new head is:
b6602eb357673f097ea1a1d22edd568ecd239da1

Related: OS#4854
Change-Id: I2833750a8cf1def74f92a5a50f0d271891cee05f
1 file changed