CVE-2024-26854 ice: fix uninitialized dplls mutex usage

In the Linux kernel, the following vulnerability has been resolved: ice: fix uninitialized dplls mutex usage The pf-dplls.lock mutex is initialized too late, after its first use. Move it to the top of icedpllinit. Note that the "errexit" error path destroys the mutex. And the mutex is the last...