i2c/quark_se_ss: fix RX request pause conditions

The driver should not request any more bytes if it expects no empty
space in the FIFO. So fix the bail out condition to (<= 0) instead of
(< 0).

Change-Id: Ie16faf1da7df678fc8ab5af7ab33d7c0a2cdba7d
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
1 file changed