Nope. They're completely separate constructs.
Autism is a neurodevelopmental disorder characterized, among other things, by excessive frontal lobe activity and neuronal density and difficulty perceiving/responding to nonverbal social cues. At its core, autism is little more than a different way of processing and responding to information. On the other hand, introversion is a facet of personality that boils down to a sensitivity to sensory information, which not all autistic children have (and which can be molded over time when they do, unlike introversion). Although it influences decision making, introversion is more about preferred environments and stimuli, the kind of environment one thrives most in, than information processing.