MS5611: memory was not correctly cleared

This time it was cleared at the wrong postition.
Thanks ernie of infect for pointing this out.
MS5611 SPI: memory was not correctly cleared

    It was cleared at the wrong postition.
    Thanks ernie of infect for pointing this out.
Merge pull request #1057 from lilvinz/ms5611_fix2

MS5611: memory was not correctly cleared