GenWQE: Increase driver version number

Increase genwqe driver version number.
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/genwqe/genwqe_driver.h

@@ -36,7 +36,7 @@
 #include <asm/byteorder.h>
 #include <linux/genwqe/genwqe_card.h>
 
-#define DRV_VERS_STRING		"2.0.15"
+#define DRV_VERS_STRING		"2.0.21"
 
 /*
  * Static minor number assignement, until we decide/implement