kmscon: Add recipe

Provide sane defaults that do not have dependencies, such as
a dummy and terminal session support and basic fbdev support.

kmsconvt@.service must be added separatly or else
do_rootfs fails with the following error:

```
do_rootfs: Postinstall scriptlets of ['kmscon'] have failed. If the intention
is to defer them to first boot, then please place them into
pkg_postinst_ontarget:${PN} (). Deferring to first boot via 'exit 1' is no
longer supported.
```

Add a small patch to fix a compiling error when using LLVM as the
preferred toolchain.

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

0 files changed, 0 insertions, 0 deletions