docker.Makefile: fix phony targets (#82941)
### Description
Updated phony targets in `docker.Makefile` to refer to the `make` target called directly after `.PHONY` declarations. This was probably the author's intention.
### Issue
None - this is a simple fix.
### Testing
* Ran `make -f docker.Makefile devel-push`
* Ran `make -f docker.Makefile runtime-push`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/82941
Approved by: https://github.com/kit1980
