Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is
"GPL v2", not "GPLv2".  Use "GPL v2" so this module doesn't taint the
kernel.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NSebastian Reichel <sre@kernel.org>