This patch replaces instances where a return code from i2c operations
were checked against a list of error codes with a much simpler
if ( status != 0 ) check.

Some whitespace cleanups included.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>