HID: rmi: Use hid_report_len to compute the size of reports
HID: rmi: Use hid_report_len to compute the size of reports

Now that hid_report_len is in hid.h we can use this function instead of
duplicating the code which computes it.

Signed-off-by: Andrew Duggan <57a481231be484a54bdf722d34ac63f2f3b8feeb@synaptics.com>
Signed-off-by: Jiri Kosina <ed58f755cc8caaf10c3e8c731a8b86fb8f13d6cb@suse.cz>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs