Please backport bridge multicast exponential field encoding fix series to 6.1.y/6.6.y/6.12.y/6.18.y/7.0.y

[Ujjal Roy]

Hi Greg,

Please consider backporting the following bridge multicast fix series to 6.1.y, 
6.6.y, 6.12.y, 6.18.y and 7.0.y.

726fa7da2d8c ("ipv4: igmp: get rid of IGMPV3_{QQIC,MRC} and simplify 
calculation")
12cfb4ecc471 ("ipv6: mld: rename mldv2_mrc() and add mldv2_qqi()")
95bfd196f0dc ("ipv4: igmp: encode multicast exponential fields")
e51560f4220a ("ipv6: mld: encode multicast exponential fields")
529dbe762de0 ("selftests: net: bridge: add MRC and QQIC field encoding tests")

This series was merged via: db314398f618 ("net: bridge: mcast: support
exponential field encoding")

I checked that the above upstream commits cherry-picked cleanly onto the 
following stable branches:

linux-7.0.y
linux-6.18.y
linux-6.12.y
linux-6.6.y
linux-6.1.y

Thanks,
Ujjal