linux-yocto: fix race between checkout and meta data generation
There are two tasks that must run before a linux-yocto kernel is built.
- Kernel checkout and relocation to work-shared (kernel_checkout)
- Meta data gathering and configuration prep (kernel_metadata)
The current task definitions for both are simply "before do_patch",
which is correct, but kernel_checkout must run before and not race with
kernel_metadata.
So we set the definition of kernel_checkout to be more specific and
enforce the proper ordering.
[YOCTO: #7731]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
