gem5: add meta-arm-bsp dependency

meta-gem5 needs the 5.4 kernel, which is only present in the
meta-arm-bsp layer.  Add this as a dependency to resolve issues.

Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-gem5/conf/layer.conf

@@ -9,7 +9,7 @@ BBFILE_COLLECTIONS += "meta-gem5"
 BBFILE_PATTERN_meta-gem5 = "^${LAYERDIR}/"
 BBFILE_PRIORITY_meta-gem5 = "5"
 
-LAYERDEPENDS_meta-gem5 = "core openembedded-layer meta-arm"
+LAYERDEPENDS_meta-gem5 = "core openembedded-layer meta-arm meta-arm-bsp"
 LAYERSERIES_COMPAT_meta-gem5 = "kirkstone"
 
 BBFILES_DYNAMIC += " \