ruby: add stdio header in SRAM.hh missing header file caused RUBY_FS to not compile
ruby: add stdio header in SRAM.hh
missing header file caused RUBY_FS to not compile

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