samples: fxos8700: Update doc references and sample output

Updates the fxos8700 sample documentation to include board
cross-references and sample output with temperature data.

Change-Id: I8d4e4d8d287806f5480316da09d4072fcf9c05ac
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
1 file changed