media: ccs-pll: Fix MODULE_LICENSE

Change MODULE_LICENSE to "GPL v2" as indicated by the SPDX tag.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/i2c/ccs-pll.c

@@ -477,4 +477,4 @@ EXPORT_SYMBOL_GPL(ccs_pll_calculate);
 
 MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>");
 MODULE_DESCRIPTION("Generic MIPI CCS/SMIA/SMIA++ PLL calculator");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");