phy: broadcom: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/phy/broadcom/phy-bcm-ns-usb2.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/phy/broadcom/phy-bcm-ns-usb3.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/phy/broadcom/phy-bcm-ns-usb2.c

···
 };
 module_platform_driver(bcm_ns_usb2_driver);
 
+MODULE_DESCRIPTION("Broadcom Northstar USB 2.0 PHY Driver");
 MODULE_LICENSE("GPL v2");

drivers/phy/broadcom/phy-bcm-ns-usb3.c

···
 
 mdio_module_driver(bcm_ns_usb3_mdio_driver);
 
+MODULE_DESCRIPTION("Broadcom Northstar USB 3.0 PHY Driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, bcm_ns_usb3_id_table);