HID: intel-thc-hid: intel-thc: make read-only arrays static const

Don't populate the read-only arrays frequency and frequency_div on
the stack at run time, instead make them static const.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>