ARM: dts: msm: set clock rate before enabling in msmcobalt

Clock must be set before enabling it.
Enabling clock before setting it may run the clock at a lower
rate than required.

CRs-Fixed: 1046014
Signed-off-by: Rajesh Bondugula <rajeshb@codeaurora.org>
Change-Id: I92618b736e637b1575a77a7fc18dd384919ed927