Fix amdsmi.h and update wrapper

Having an unnamed struct confuses our wrapper generator.
Adding a name solved it.

Change-Id: Iab3e73317fb21fb3667beef04878d4f3da96eadf
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

include/amd_smi/amdsmi.h

@@ -418,7 +418,7 @@ typedef struct {
 
 typedef struct {
   uint32_t num_cache_types;
-  struct {
+  struct cache_ {
     uint32_t cache_size_kb; /* In KB */
     uint32_t cache_level;
     uint32_t reserved[3];