intel_uc_fw_copy_rsa
copied = intel_uc_fw_copy_rsa(guc_fw, rsa, sizeof(rsa));
copied = intel_uc_fw_copy_rsa(uc_fw, vaddr, vma->size);
size_t intel_uc_fw_copy_rsa(struct intel_uc_fw *uc_fw, void *dst, u32 max_len);