mailmap: add Marek's other e-mail address and identity without diacritics

Some of my commits were sent with identities
  Marek Behun <>
  Marek Behún <>
while the correct one is
  Marek Behún <>

Put this into mailmap so that git shortlog prints all my commits under
one identity.

Signed-off-by: Marek Behún <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
1 file changed