Enable RetroArch's "SaveRAM Autosave Interval" by default

[Nick-Lucas]

Currently this setting defaults to off on new installs, which is user hostile because everyone will end up enabling this after the first time they lose multiple hours of progress in a game like Pokemon. It was my turn to get burned today, thinking that creating Save States was enough, but those were gone too after recovering a dead battery. This setting needs to be set to a sensible value by default