[msp430-gcc/f18] (4 commits) ...Add missing changelog entry

[rspanton]

Summary of changes:

  cd6ba65... Upgrade to the mspgcc uniarch LTS release (*)
  624f502... Require the latest msp430-binutils (*)
  dad42db... Add {gmp,mpfr,libmpc}-devel to BuildRequires (*)
  f7666b6... Add missing changelog entry (*)

(*) This commit already existed in another branch; no separate mail sent