ICMP bind errors do not match Linux

**Description**

While creating a syscall test for ICMP socket binding, I found a discrepancy with Linux.

When binding an ICMP socket with an IPv6 address, `bind()` returns `EINVAL` whereas Linux returns `EAFNOSUPPORT`.

**Steps to reproduce**

Run test `//third_party/gvisor/test/syscalls:ping_socket_test_runsc_kvm_vfs2` with the if statement linked to this bug removed.