sh: Revert incorrect license string changes.

These were right the first time. Either a thinko or
building in the wrong tree. Revert this.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/drivers/push-switch.c

@@ -138,4 +138,4 @@ module_exit(switch_exit);
 
 MODULE_VERSION(DRV_VERSION);
 MODULE_AUTHOR("Paul Mundt");
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");

arch/sh/mm/cache-debugfs.c

@@ -144,4 +144,4 @@ static int __init cache_debugfs_init(void)
 }
 module_init(cache_debugfs_init);
 
-MODULE_LICENSE("GPLv2");
+MODULE_LICENSE("GPL v2");