phy: intel-lgm-emmc: Fix warning by adding missing MODULE_LICENSE

commit 95f1061f715e ("phy: intel-lgm-emmc: Add support for eMMC PHY")
introduces the below warning

   WARNING: modpost: missing MODULE_LICENSE() in
   drivers/phy/intel/phy-intel-emmc.o

Fix it by adding missing MODULE_LICENSE.
Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

drivers/phy/intel/phy-intel-emmc.c

@@ -281,3 +281,4 @@ module_platform_driver(intel_emmc_driver);
 
 MODULE_AUTHOR("Peter Harliman Liem <peter.harliman.liem@intel.com>");
 MODULE_DESCRIPTION("Intel eMMC PHY driver");
+MODULE_LICENSE("GPL v2");