gdb: rename lm_info_base to lm_info The base class doesn't need to have "_base" in its name, all the sub-classes have a specific suffix. Change-Id: I87652105cfedd87898770a81f0eda343ff7f2bdb Approved-By: Pedro Alves <pedro@palves.net> Reviewed-By: Reviewed-By: Lancelot Six <lancelot.six@amd.com>