MDEV-20127 Merge new release of InnoDB 5.6.45 to 10.1

There is one directly applicable change to InnoDB:
commit 739f5239 in the
5.5 branch will be merged before the next MariaDB releases.

Another potentially applicable change will be tracked
separately as MDEV-20126.

Thus, here we only update the InnoDB version number and do
not change anything else.

mysql-test/suite/sys_vars/r/sysvars_innodb,32bit,xtradb.rdiff

@@ -1214,7 +1214,7 @@
  COMMAND_LINE_ARGUMENT	OPTIONAL
  VARIABLE_NAME	INNODB_VERSION
  SESSION_VALUE	NULL
--GLOBAL_VALUE	5.6.44
+-GLOBAL_VALUE	5.6.45
 +GLOBAL_VALUE	5.6.43-84.3
  GLOBAL_VALUE_ORIGIN	COMPILE-TIME
  DEFAULT_VALUE	NULL

mysql-test/suite/sys_vars/r/sysvars_innodb,xtradb.rdiff

@@ -684,7 +684,7 @@
  COMMAND_LINE_ARGUMENT	OPTIONAL
  VARIABLE_NAME	INNODB_VERSION
  SESSION_VALUE	NULL
--GLOBAL_VALUE	5.6.44
+-GLOBAL_VALUE	5.6.45
 +GLOBAL_VALUE	5.6.43-84.3
  GLOBAL_VALUE_ORIGIN	COMPILE-TIME
  DEFAULT_VALUE	NULL

mysql-test/suite/sys_vars/r/sysvars_innodb.result

@@ -2401,7 +2401,7 @@ READ_ONLY	NO
 COMMAND_LINE_ARGUMENT	OPTIONAL
 VARIABLE_NAME	INNODB_VERSION
 SESSION_VALUE	NULL
-GLOBAL_VALUE	5.6.44
+GLOBAL_VALUE	5.6.45
 GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	NULL
 VARIABLE_SCOPE	GLOBAL

storage/innobase/include/univ.i

@@ -45,7 +45,7 @@ Created 1/20/1994 Heikki Tuuri
 
 #define INNODB_VERSION_MAJOR	5
 #define INNODB_VERSION_MINOR	6
-#define INNODB_VERSION_BUGFIX	44
+#define INNODB_VERSION_BUGFIX	45
 
 /* The following is the InnoDB version as shown in
 SELECT plugin_version FROM information_schema.plugins;