In gdb-remote process we have register infos defind GDBRemoteDynamicRegisterInfo reference. In past register infos have remained constant througout the life time of a process.
This changes in AArch64 SVE variant where register infos will have per-thread configuration. SVE register will have per-thread size and can be updated while running. This patch aims to build up for that support by change GDBRemoteDynamicRegisterInfoSP from a reference defined in GDBRemoteProcess to a shared pointer deinfed per-thread.