sensorhandler: ipmi_sen_get_sdr: invert logic check

Reduce indentation of code by flipping logic check.  It looks like the
failure case should also set dataLen to 0, but it didn't previously,
therefore that would qualify for a follow-on patch.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I4abe6ec9382e7c5632bc364ba123c31323677e11
1 file changed