linux-wandboard

mmc: host: use of_property_read_bool()

Use more compact of_property_read_bool() calls instead of the
of_find_property() calls.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
(cherry picked from commit 90614cd9045dc7003913ee58cbc77950351485a0)