isa_parser: Make SCons import the isa_parser this is instead of forking a new interpreter
isa_parser: Make SCons import the isa_parser
this is instead of forking a new interpreter

andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin