Failures on Ubuntu-AArch64-m64, branch gdb-8.1-branch

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	ubuntu-aarch64-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Ubuntu-AArch64-m64/builds/3918>

Commit(s) tested:
	f464485579f8e0a22e87aaa568b7ed4b3ec13ee3

Author(s) (in the same order as the commits):
	Yao Qi <yao.qi@linaro.org>

Subject:
	Fix GDBserver build failure when $development is false

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Ubuntu-AArch64-m64/f4/f464485579f8e0a22e87aaa568b7ed4b3ec13ee3/>

*** Diff to previous build ***
============================
new KFAIL: gdb.base/step-over-syscall.exp: clone: displaced=on: single step over clone
PASS -> FAIL: gdb.mi/list-thread-groups-available.exp: list available thread groups with filter
PASS -> FAIL: gdb.threads/clone-thread_db.exp: continue to end
============================


*** Complete list of XFAILs for this builder ***

FAILURE TO OBTAIN THE COMMIT FOR THE XFAIL LIST.  PLEASE CONTACT THE BUILDBOT ADMIN.