Rework demo packagegroup and images

Rework the agl-ivi-demo-platform* images to reduce duplication,
and move the additions for the agl-demo-cluster-support and
agl-demo-preload features.

Changes:
- Pull in agl-image-ivi.bb in the crosssdk image rather than
  duplicating its contents.  This means the package additions
  from the demo features will be reflected in the SDK, which
  seems more in line with general expectations of how Yocto SDKs
  work.
- New packagegroups are created for the agl-demo-cluster-support
  and agl-demo-preload features, and they are pulled into the
  agl-ivi-demo-platform / agl-demo-platform image using features
  in IMAGE_FEATURES.  This avoids changing the contents of various
  packagegroups based on AGL_FEATURES and seems more futureproof
  with respect to binary packaging.
- ALLOW_EMPTY has been removed in a few packagegroup recipes, as
  it does not seem to make sense if the packagegroup will never
  be empty.
- The cluster-dashboard-demo-config recipe pulled into the
  agl-demo-cluster-support packagegroup has been added back, it
  was accidentally removed in the application framework cleanup.

Bug-AGL: SPEC-4424

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I114b77ded6c47414270acfc3cd06e998dbcc4cef

1 files changed, 29 insertions, 0 deletions

diff --git a/recipes-platform/packagegroups/packagegroup-agl-demo-preload.bb b/recipes-platform/packagegroups/packagegroup-agl-demo-preload.bb
new file mode 100644
index 000000000..5a9178afd
--- /dev/null
+++ b/recipes-platform/packagegroups/packagegroup-agl-demo-preload.bb
@@ -0,0 +1,29 @@
+SUMMARY = "Extra software and configuration for tradeshow demo with AGL IVI profile demo platform"
+LICENSE = "MIT"
+
+inherit packagegroup
+
+PROVIDES = "${PACKAGES}"
+PACKAGES = " \
+    packagegroup-agl-demo-preload \
+"
+
+# NOTES:
+# - demo-i2x-udev-conf:
+#     Adds udev configuration and scripts for supporting USB attached
+#     I2C devices for RTC and HVAC LED support.
+# - sllin-demo:
+#     Adds systemd unit and scripting to drive configuring sllin
+#     driver with lin-config utility, enabling HVAC fan control and
+#     steering wheel controls in the demo.
+# - simple-can-simulator:
+#     CAN message simulator for vehicle and engine speed message
+#     generation, with some support for the cruise control events from
+#     the steering wheel used in the demo setup.
+#
+RDEPENDS:${PN} = "\
+    packagegroup-agl-demo-platform \
+    demo-i2c-udev-conf \
+    sllin-demo \
+    simple-can-simulator \
+"