liri-wayland_git: rework PACKAGECONFIG defaults

* Use default matching for most environments
* In case a BSP wants a different device-interation it can ovverride simply -
  e.g. a closed-source accelerated Raspi could set
  PACKAGECONFIG_EGL_rpi = "${@bb.utils.contains('DISTRO_FEATURES', 'opengl', 'brcm', '', d)}"

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>

recipes-liri/liri-wayland/liri-wayland_git.bb

@@ -25,7 +25,13 @@ DEPENDS += " \
     libinput \
 "
 
+# egl packageconfig factored out to make it easy for BSP layers to pick what
+# machines need
+PACKAGECONFIG_EGL ?= "kms"
+
 PACKAGECONFIG ??= " \
+    protocols \
+    ${PACKAGECONFIG_EGL} \
     ${@bb.utils.contains("DISTRO_FEATURES", "x11", "xwayland", "",d)} \
 "
 PACKAGECONFIG[kms] = "-DENABLE_EGLDEVICEINTEGRATION_KMS:BOOL=ON,-DENABLE_EGLDEVICEINTEGRATION_KMS:BOOL=OFF,drm libgbm virtual/egl"