egl: re-format according to clang-format and enforce this in CI
The second to last commit is a simple ninja -C build/ clang-format
with no manual changes, to make it trivial to regenerate when there are rebase conflicts.
The AlwaysBreakAfterReturnType: All
part of egl: change a couple of clang-format settings
will be dropped if !23397 (closed) gets merged.
Decided to keep it here; see !23397 (comment 1939835)
Edited by Eric Engestrom