ARM: at91: rm9200 fix time support

ARM: at91: rm9200 fix time support

since commit 13c1002816fd22e60e3e8708ce07326da273795e
Author: Shawn Guo <shawn.guo@linaro.org>
Date:   Sat Jan 12 11:50:05 2013 +0000

ARM: use clockevents_config_and_register() where possible

The timer is wrongly configured and result in a nice crash
so revert it on rm9200 timer.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: stable <stable@vger.kernel.org> # 3.8+
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>