std.posix.termios: bring V back

In d7563a7753393d7f0d1af445276a64b8a55cb857, I misunderstood what `cc_t`
was supposed to do. Those V enum values are indices into the array.
5f92558290Andrew Kelley committed on 2/14/2024, 4:10:32 AMparent9ec0cf2
3 files changedLine totals unavailable