package/weston: fix the configuration of simple-clients

commit 7329a0db442026c6b856e76ea964107fa3c730f3
"weston: disable v4l simple dmabuf for headers < 3.8"
disabled dmabuf-v4l-client when kernel headers are older than v3.8.
This commit was made at the time the weston package was at version
1.10.0, using the autotools package infra.

commit e672eb5c39fa626f8e924269cec2056be9e14ded
"package/weston: bump to version 8.0.0"
replaced the package infra to meson (since upstream deprecated
autotools). This commit changed a disable of dmabuf-v4l-client in
autotools, by enabling it only if supported. The end result is that
the current meson package recipe disable ALL simple clients, or just
enable dmabuf-v4l-client when supported. In all cases, all other
weston simple clients are disabled. This behavior is not convenient
since some of those simple clients are useful to test the correct
operation of Weston and the rest of the graphic stack.

This commit fixes this issue by enabling all supported simple clients.

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/weston/weston.mk

@@ -22,13 +22,22 @@ WESTON_CONF_OPTS = \
 	-Dlauncher-libseat=true \
 	-Dtools=calibrator,debug,info,terminal,touch-calibrator
 
-# Uses VIDIOC_EXPBUF, only available from 3.8+
+WESTON_SIMPLE_CLIENTS = \
+	damage \
+	dmabuf-egl \
+	dmabuf-feedback \
+	egl \
+	im \
+	shm \
+	touch
+
 ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8),y)
-WESTON_CONF_OPTS += -Dsimple-clients=dmabuf-v4l
-else
-WESTON_CONF_OPTS += -Dsimple-clients=
+# dmabuf-v4l uses VIDIOC_EXPBUF, only available from 3.8+
+WESTON_SIMPLE_CLIENTS += dmabuf-v4l
 endif
 
+WESTON_CONF_OPTS += -Dsimple-clients=$(subst $(space),$(comma),$(strip $(WESTON_SIMPLE_CLIENTS)))
+
 ifeq ($(BR2_PACKAGE_JPEG),y)
 WESTON_CONF_OPTS += -Dimage-jpeg=true
 WESTON_DEPENDENCIES += jpeg