net: fill in MODULE_DESCRIPTION()s for HSR

W=1 builds now warn if module is built without a MODULE_DESCRIPTION().
Add descriptions to High-availability Seamless Redundancy (HSR) driver.
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20240108181610.2697017-4-leitao@debian.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

net/hsr/hsr_main.c

@@ -167,4 +167,5 @@ static void __exit hsr_exit(void)
 
 module_init(hsr_init);
 module_exit(hsr_exit);
+MODULE_DESCRIPTION("High-availability Seamless Redundancy (HSR) driver");
 MODULE_LICENSE("GPL");