Upgrade event data recorder (camera) to support SDHC

Device is an industrial video recording unit with multiple sensor feeds recording to SD-Card media. Processor is ARM946E-S core DSP, part #AT76C116. Mirrored processors to record dual video streams. Existing unit is utilizing Eye-fi SD-Card to handle both video storage and wi-fi duties. Unit was originally developed when 2G SD was maximum common density. Project entails modifying code to allow for SDHC densities.