commit 267c8586 upstream.

Setting the flag 'cache_bypass' will bypass the cache not the hardware.
Fix this comment here.

Fixes: 0eef6b04 ("regmap: Fix doc comment")
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>