techpack: import from sos-3.x

Change-Id: I68906548846d0bc78ff6dbd8a8a400638715ccda
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
diff --git a/techpack/Kconfig b/techpack/Kconfig
new file mode 100644
index 0000000..ede7b08
--- /dev/null
+++ b/techpack/Kconfig
@@ -0,0 +1 @@
+source "techpack/audio/Kconfig"