General structure packing

Pack often used structures, so that less memory/cachelines are used

Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>

modules/cas_cache/utils/utils_mpool.c

@@ -7,12 +7,12 @@
 #include "ocf_env.h"
 
 struct env_mpool {
-	int mpool_max;
-		/*!< Max mpool allocation order */
-
 	env_allocator *allocator[env_mpool_max];
 		/*!< OS handle to memory pool */
 
+	int mpool_max;
+		/*!< Max mpool allocation order */
+
 	uint32_t hdr_size;
 		/*!< Data header size (constant allocation part) */