MDEV-6533 - MySQL Bug#72718 - CACHE_LINE_SIZE in innodb should be 128 on POWER

This patch is suggested by Stewart Smith.
Define CACHE_LINE_SIZE to 128 on POWER.

storage/innobase/include/ut0counter.h

@@ -32,7 +32,11 @@ Created 2012/04/12 by Sunny Bains
 #include "os0thread.h"
 
 /** CPU cache line size */
+#ifdef __powerpc__
+#define CACHE_LINE_SIZE		128
+#else
 #define CACHE_LINE_SIZE		64
+#endif
 
 /** Default number of slots to use in ib_counter_t */
 #define IB_N_SLOTS		64

storage/xtradb/include/ut0counter.h

@@ -32,7 +32,11 @@ Created 2012/04/12 by Sunny Bains
 #include "os0thread.h"
 
 /** CPU cache line size */
+#ifdef __powerpc__
+#define CACHE_LINE_SIZE		128
+#else
 #define CACHE_LINE_SIZE		64
+#endif
 
 /** Default number of slots to use in ib_counter_t */
 #define IB_N_SLOTS		64

storage/xtradb/srv/srv0srv.cc

@@ -504,7 +504,11 @@ UNIV_INTERN ulint	srv_available_undo_logs         = 0;
 
 /* Ensure status variables are on separate cache lines */
 
+#ifdef __powerpc__
+#define CACHE_LINE_SIZE 128
+#else
 #define CACHE_LINE_SIZE 64
+#endif
 #define CACHE_ALIGNED __attribute__ ((aligned (CACHE_LINE_SIZE)))
 
 UNIV_INTERN byte