docs: w1: Fix a typo in omap-hdq.rst

Fix a spelling typo in omap-hdq.rst

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Link: https://lore.kernel.org/r/20191225165534.9395-1-standby24x7@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
1 file changed