zsh: added support for my cross compile shell variable like $arm
zsh: added support for my cross compile shell variable like $arm

- Add setop shwordsplit so that my $arm work
- The changes are added on oh-myzsh generated file.

Signed-off-by: Ratheesh Soma Reddy <f847af0ee3590f4912d169b886f309989d9e4c2e@gmail.com>

ratheesh/dot-files,ratheesh/dot-files