Add getter function for cache->device->concurrency.cache_line

The purpose of this change is to facilitate unit testing.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>

src/utils/utils_cache_line.c

@@ -44,8 +44,7 @@ static void __set_cache_line_invalid(struct ocf_cache *cache, uint8_t start_bit,
 	 * only valid bits
 	 */
 	if (!is_valid && !ocf_cache_line_are_waiters(
-			cache->device->concurrency.cache_line,
-			line)) {
+			ocf_cache_line_concurrency(cache), line)) {
 		ocf_purge_eviction_policy(cache, line);
 		ocf_metadata_remove_cache_line(cache, line);
 	}

src/utils/utils_cleaner.c

@@ -213,8 +213,7 @@ static int _ocf_cleaner_cache_line_lock(struct ocf_request *req)
 
 	OCF_DEBUG_TRACE(req->cache);
 
-	return ocf_req_async_lock_rd(
-			req->cache->device->concurrency.cache_line,
+	return ocf_req_async_lock_rd(ocf_cache_line_concurrency(req->cache),
 			req, _ocf_cleaner_on_resume);
 }