qcacld-3.0: Refactor "set pdev" ioctl processing

One of the HDD functions with the highest cyclomatic complexity is
__iw_setint_getnone(). In order to reduce the complexity there is a
plan to replace the existing switch with a vtable. As part of that
goal refactor the "set pdev" ioctl handling into separate functions.

Change-Id: I4f382b7681710ce50cb5b2ffe65e4ad03d73a670
CRs-Fixed: 2346189
1 file changed