r-car m2: preconfigure Porter/Koelsch sound mixer

Sound is inaudible when starting a Porter/Koelsch board,
because default state of their sound mixer is muted.

Add a "alsa-utils-config" recipe which will be commented
out, but available in local.conf, to preconfigure their
mixer. Sound volume will be approximately 25% of maximum.

Change-Id: Iaf60f612f8e01e7aa51f8a0558de00f26d36aee8
Signed-off-by: Manuel Bachmann <mbc@iot.bzh>

1 files changed, 39 insertions, 0 deletions

diff --git a/meta-rcar-gen2/recipes-multimedia/alsa/alsa-utils-config/COPYING b/meta-rcar-gen2/recipes-multimedia/alsa/alsa-utils-config/COPYING
new file mode 100644
index 0000000..c7f9365
--- /dev/null
+++ b/meta-rcar-gen2/recipes-multimedia/alsa/alsa-utils-config/COPYING
@@ -0,0 +1,39 @@
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