Add symbols for all accessible RAM and EEPROM registers, as well as the
sleep command and timings defined in the datasheet.
Signed-off-by: NVianney le Clément de Saint-Marcq <vianney.leclement@essensium.com>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>