soc: qcom: cx_ipeak: Remove iterator declaration in for loop

Not all compilers allow for iterators to be declared within
for loops, so adopt a more compiler-agnostic approach
of declaring for loop iterators.

Change-Id: Ib33f6b1770deeba3525d6e5bf5a2abc47784a6b0
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>