[llvm] [AVR] Force relocations for jumps and calls (PR #118015)

[Ben Shi via llvm-commits]

benshi001 wrote:

> Hmm, so we'd like to diverge from avr-gcc's behavior, right?

Unless there is a very strong reason force us to follow avr-gcc.

https://github.com/llvm/llvm-project/pull/118015