meta-xilinx-core: openamp: device-tree: Fix missing space

A missing space was causing:

Unable to get checksum for device-tree SRC_URI entry system.dtsizynqmp-openamp.dtsi: file could not be found

Switch from expanding the value to using the variable.  This ensure checksums
are preserved.

Signed-off-by: Mark Hatle <mark.hatle@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta-xilinx-core/dynamic-layers/openamp-layer/recipes-bsp/device-tree/device-tree.bbappend b/meta-xilinx-core/dynamic-layers/openamp-layer/recipes-bsp/device-tree/device-tree.bbappend
index 27887e88..7dcee565 100644
--- a/meta-xilinx-core/dynamic-layers/openamp-layer/recipes-bsp/device-tree/device-tree.bbappend
+++ b/meta-xilinx-core/dynamic-layers/openamp-layer/recipes-bsp/device-tree/device-tree.bbappend
@@ -14,7 +14,7 @@ def set_openamp_extra_overlays(d):
     distro_features = d.getVar('DISTRO_FEATURES', True)
     enable_openamp_dtsi = d.getVar('ENABLE_OPENAMP_DTSI')
     if 'openamp' in distro_features and enable_openamp_dtsi == '1':
-        return d.getVar('OPENAMP_EXTRA_OVERLAYS', True)
+        return ' ${OPENAMP_EXTRA_OVERLAYS}'
     else:
         return ''