idpf: fix memory leak in idpf_vc_core_deinit()

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

idpf: fix memory leak in idpf_vc_core_deinit()

Make sure to free hw->lan_regs. Reported by kmemleak during reset:

unreferenced object 0xff1b913d02a936c0 (size 96):

comm "kworker/u258:14", pid 2174, jiffies 4294958305

hex dump (first 32 bytes):

00 00 00 c0 a8 ba 2d ff 00 00 00 00 00 00 00 00 ......-.........

00 00 40 08 00 00 00 00 00 00 25 b3 a8 ba 2d ff ..@.......%...-.

backtrace (crc 36063c4f):

__kmalloc_noprof+0x48f/0x890

idpf_vc_core_init+0x6ce/0x9b0 [idpf]

idpf_vc_event_task+0x1fb/0x350 [idpf]

process_one_work+0x226/0x6d0

worker_thread+0x19e/0x340

kthread+0x10f/0x250

ret_from_fork+0x251/0x2b0

ret_from_fork_asm+0x1a/0x30