linux, android: Add definition for IUCLC

[3v1n0]

Description

Add IUCLC definition as per glibc and musl value, as it's required by nix (termios) and uutils for stty

This is defined in termios-c_iflag.h (or termbits.h) and it's shared across all the linux archs (a part powerpc and alpha), even though it's not POSIX

Sources

• Linux: https://github.com/torvalds/linux/blob/2eba5e05d9bcf4cdea995ed51b0f07ba0275794a/include/uapi/asm-generic/termbits.h#L61
• Glibc: https://github.com/bminor/glibc/blob/ff92750112e782300ff455c13d9bb0ae1603aa65/sysdeps/unix/sysv/linux/bits/termios-c_iflag.h#L33
• Musl: https://github.com/bminor/musl/blob/1b76ff0767d01df72f692806ee5adee13c67ef88/arch/generic/bits/termios.h#L39
• Android: https://cs.android.com/android/platform/superproject/main/+/main:external/musl/arch/generic/bits/termios.h?q=IUCLC&ss=android%2Fplatform%2Fsuperproject%2Fmain

Checklist

• Relevant tests in libc-test/semver have been updated
• No placeholder or unstable values like *LAST or *MAX are
  included (see #3131)
• Tested locally (cd libc-test && cargo test --target mytarget);
  especially relevant for platforms that may not be checked in CI

[rustbot]

Some changes occurred in the Android module

cc @maurer