[PATCH] net: ll_temac: Use of_property_read_u32 instead of open-coding it

From: Tobias Klauser <tklauser@distanz.ch>
Date: Tue, 22 Sep 2015 13:41:57 +0200

Use of_property_read_u32 to read the "clock-frequency" property instead
of using of_get_property with return value checks.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

Applied to net-next.