keepalived: bump to 2.3.2

keepalived: bump to 2.3.2

This requires backporting two upstream commits to avoid a segfault
due to the /etc/iproute2/rt_addrprotos.d and
/usr/share/iproute2/rt_addrprotos.d directories not existing on OpenWrt,
and the following compile error:

In file included from /home/stijn/Development/OpenWrt/openwrt/staging_dir/toolchain-powerpc64_e5500_gcc-13.3.0_musl/include/net/ethernet.h:10,
                 from vrrp.c:44:
/home/stijn/Development/OpenWrt/openwrt/staging_dir/toolchain-powerpc64_e5500_gcc-13.3.0_musl/include/netinet/if_ether.h:115:8: error: redefinition of 'struct ethhdr'
  115 | struct ethhdr {
      |        ^~~~~~
In file included from vrrp.c:43:
/home/stijn/Development/OpenWrt/openwrt/staging_dir/toolchain-powerpc64_e5500_gcc-13.3.0_musl/include/linux/if_ether.h:173:8: note: originally defined here
  173 | struct ethhdr {
      |        ^~~~~~

Signed-off-by: Stijn Tintel <redacted>