**ocf_mngt.h**: In core name change

pointer type to array which is 32 characters long;
**core.py**: Add missing import and modify class' field type
to keep consistency;
**ocf_mngt_core**: Remove local variable 'name';
remove env_vmalloc for 'name' - isn't no longer needed;
remove initialization 'name' - as above;
remove env_vfree for context->cfg.name - variable isn't no allocated
in memory;
check if cfg->name exists;
change label in goto from deleted err_name to the closest err_pipeline.

Signed-off-by: Slawomir_Jankowski <slawomir.jankowski@intel.com>

inc/ocf_mngt.h

@@ -22,7 +22,7 @@ struct ocf_mngt_core_config {
 	/**
 	 * @brief OCF core name
 	 */
-	const char *name;
+	char name[OCF_CORE_NAME_SIZE];
 
 	/**
 	 * @brief OCF core volume UUID