Statetrace: Accomodate cross compiling statetrace with scons.

Statetrace: Accomodate cross compiling statetrace with scons.

--HG--
rename : util/statetrace/arch/tracechild_amd64.cc => util/statetrace/arch/amd64/tracechild.cc
rename : util/statetrace/arch/tracechild_amd64.hh => util/statetrace/arch/amd64/tracechild.hh
rename : util/statetrace/arch/tracechild_arm.cc => util/statetrace/arch/arm/tracechild.cc
rename : util/statetrace/arch/tracechild_arm.hh => util/statetrace/arch/arm/tracechild.hh
rename : util/statetrace/arch/tracechild_i386.cc => util/statetrace/arch/i386/tracechild.cc
rename : util/statetrace/arch/tracechild_i386.hh => util/statetrace/arch/i386/tracechild.hh
rename : util/statetrace/arch/tracechild_sparc.cc => util/statetrace/arch/sparc/tracechild.cc
rename : util/statetrace/arch/tracechild_sparc.hh => util/statetrace/arch/sparc/tracechild.hh
rename : util/statetrace/tracechild_arch.cc => util/statetrace/base/arch_check.h
rename : util/statetrace/regstate.hh => util/statetrace/base/regstate.hh
rename : util/statetrace/statetrace.cc => util/statetrace/base/statetrace.cc
rename : util/statetrace/tracechild.cc => util/statetrace/base/tracechild.cc
rename : util/statetrace/tracechild.hh => util/statetrace/base/tracechild.hh