staging:iio:adc:max1363 fix timestamp handling.

Not only was this not compliant with the abi, it was also missconfiguring
the buffer.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/iio/adc/max1363_core.c
Simple merge

diff --cc drivers/staging/iio/adc/max1363_ring.c
Simple merge