kern-tools: report missing config fragments by name
If a configuration fragment was missing, the previous error output
was not clear about the error:
| [INFO] doing kernel configme
| [INFO] Configuring target/machine combo: "standard/atom-pc"
| [INFO] collecting configs in ./meta/meta-series
| ERROR: could not sanitize configuration fragments
| errors are logged in ... linux/meta/cfg/standard/atom-pc/config.log
but we know the name of the missing fragment and can improve the error
message to be this:
| [ERROR] kernel configuration fragment fragment 'virto.cfg' cannot be found
| ERROR. A meta series could not be created for branch yocto/standard/common-pc/atom-pc
| ERROR. Could not locate meta series for atom-pc
| ERROR. Could not apply patches for atom-pc.
| Patch failures can be resolved in the devshell (bitbake -c devshell linux-yocto)
[YOCTO #3473]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
