cml1.bbclass: wait until menuconfig terminal finishes
There are at least two terminals types (gnome and tmux) that when
launched to show the kernel's menuconfig, we lost track of the corresponding
process ID, thus there is no way to see when they finish, yielding identical
timestamps before and after menuconfig thus compile's task
is never tainted. This commit takes the solution from [1] but now in the menuconfig's
context.
[1] http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=
c706bfbabbf9f7caf2cf509eb91381fb49aa44cb
[YOCTO #11146]
Signed-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
