layer: Allow to have entire recipes in the yocto-VER directory

In case of the upcoming glib-2.0 change we only want to use our
version on Dora. Look for *.bb in the yocto-dora/*/ as well.

conf/layer.conf

@@ -10,6 +10,7 @@ BBFILES += "${BBFILES_SYSMOCOM_BSP}"
 
 # selects specific distro or master when DISTRO_VERSION contains snapshot
 BBFILES_SYSMOCOM_BSP = "${LAYERDIR}/yocto-${@dict([('1.5', 'dora')]).get(d.getVar('DISTRO_VERSION', True)[0:3],'master')}/*.bbappend"
+BBFILES_SYSMOCOM_BSP += "${LAYERDIR}/yocto-${@dict([('1.5', 'dora')]).get(d.getVar('DISTRO_VERSION', True)[0:3],'master')}/*/*.bb"
 
 BBFILE_COLLECTIONS += "sysmocom-bsp"
 BBFILE_PATTERN_sysmocom-bsp := "^${LAYERDIR}/"