Description: ipv6: fix a typo in fib6_rule_lookup()
References:
Notes:
 carnil> Commit fixes d64a1f5 ("ipv6: honor RT6_LOOKUP_F_DST_NOREF in
 carnil> rule lookup logic") which is only present in 5.3-rc1 onwards.
 carnil> Fix backported as well to 5.3.4. No Debian unstable release
 carnil> ever affected, only experimental versions.
Bugs:
upstream: released (5.4-rc1) [7b09c2d052db4b4ad0b27b97918b46a7746966fa]
4.19-upstream-stable: N/A "Vulnerable code introduced later"
4.9-upstream-stable: N/A "Vulnerable code introduced later"
3.16-upstream-stable: N/A "Vulnerable code introduced later"
sid: N/A "Vulnerable code never present"
4.19-buster-security: N/A "Vulnerable code introduced later"
4.9-stretch-security: N/A "Vulnerable code introduced later"
3.16-jessie-security: N/A "Vulnerable code introduced later"