[Bug target/68263] Vector "*mov_internal" fails to handle misaligned load/store from reload

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68263

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> ---
After PR 66250 is fixed, we need to adjust all alignments > 4 bytes
to 4 bytes.