ARM: dts: msm: Fix the typo in the L3 frequency for the Gold cluster

There is a typo in the L3 frequency for the cpu4-l3-latmon device
This changes fixes the typo.

Change-Id: I11ff74931fc6931606ab8524ad7b0de28f901a50
Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>