[binutils-gdb] Include target.h in inf-loop.h

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT 051d2ddae5a2289d1f253b563e57a8e8496a06bb ***

Author: Yao Qi <yao.qi@linaro.org>
Branch: master
Commit: 051d2ddae5a2289d1f253b563e57a8e8496a06bb

Include target.h in inf-loop.h

$ make check-headers CHECK_HEADERS="target.h inf-loop.h"
...
../../binutils-gdb/gdb/inf-loop.h:23:42: error: use of enum 'inferior_event_type' without previous declaration
 extern void inferior_event_handler (enum inferior_event_type event_type,
                                          ^
gdb:

2017-01-06  Yao Qi  <yao.qi@linaro.org>

	* inf-loop.c: Don't include "target.h".
	* inf-loop.h: Include it here.