Fix : do_patch waring weston 6.0.0

Fix : do_patch waring weston 6.0.0

Backport weston patch to Fix do_patch warning.

http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes-graphics/wayland/weston/0001-make-error-portable.patch

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WARNING: weston-6.0.0-r0 do_patch:
Some of the context lines in patches were ignored. This can lead to incorrectly applied patches.
The context lines in the patches can be updated with devtool:

    devtool modify <recipe>
    devtool finish --force-patch-refresh <recipe> <layer_path>

Then the updated patches and the source tree (in devtool's workspace)
should be reviewed to make sure the patches apply in the correct place
and don't introduce duplicate lines (which can, and does happen
when some of the context is ignored). Further information:
http://lists.openembedded.org/pipermail/openembedded-core/2018-March/148675.html
https://bugzilla.yoctoproject.org/show_bug.cgi?id=10450
Details:
Applying patch 0001-make-error-portable.patch
patching file configure.ac
Hunk #1 succeeded at 126 with fuzz 2 (offset 17 lines).
patching file libweston/weston-error.h
patching file libweston/weston-launch.c

Now at patch 0001-make-error-portable.patch

Bug-AGL: SPEC-2499

Change-Id: If80c4e71be1f58362c78fec9ca6c2ca29d224c39
Signed-off-by: Harunobu Kurokawa <harunobu.kurokawa.dn@renesas.com>