build system: avoid warning about missing .xcompile

That file will be generated, but not before make managed
to complain about it.
So let's just generate it if missing - it won't hurt the
dependency tracking some lines later which is looking at
time stamps.

Change-Id: I615f38457eb27a8ffb4352b5234e262ee95d84ac
Signed-off-by: Patrick Georgi <>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <>
1 file changed