drm/amd/display: Fix array-index-out-of-bounds in dcn35_clkmgr

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix array-index-out-of-bounds in dcn35_clkmgr

[Why] There is a potential memory access violation while iterating through array of dcn35 clks.

[How] Limit iteration per array size.