Adapt layer to work with the meta-seconorth-nogplv3 layer

The FEATURE_PACKGES directive doesn't work here, because the packagegroups aren't run like a normal recipe. Moved the GPLv3 packages back to PACKAGES for normal inclusion.

(cherry picked from commit b996d338)

recipes-bsp/packagegroups/packagegroup-seconorth-tests.bb

@@ -3,20 +3,20 @@ DESCRIPTION = "SECO Northern Europe Test Packagegroup"
 inherit packagegroup
 
 PACKAGES = " \
-    ${@bb.utils.contains('DISTRO_FEATURES', 'gplv3', '${PN}-gplv3', '', d)} \
     ${PN} \
     ${PN}-small \
 "
 
 RDEPENDS:${PN}-small = " \
-    ${@bb.utils.contains('DISTRO_FEATURES', 'gplv3', '${PN}-gplv3', '', d)} \
     bbb \
     beep \
     devmem2 \
+    drm-framebuffer \
     evtest \
     fbgrab \
     gf-productiontests \
     gfi2c \
+    glmark2 \
     i2c-tools \
     iperf3 \
     libdrm-tests \
@@ -31,9 +31,3 @@ RDEPENDS:${PN} = " \
     emc-test-suite \
     packagegroup-seconorth-multimedia-tests \
 "
-
-RDEPENDS:${PN}-gplv3 = " \
-    drm-framebuffer \
-    glmark2 \
-"
-