[binutils-gdb] Fix uninitialised memory acccess in COFF bfd backend

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 810ed4db984d378ca9c8e3d152966fb81c23ef95 ***

Author: Christophe Guillon <christophe.guillon@st.com>
Branch: master
Commit: 810ed4db984d378ca9c8e3d152966fb81c23ef95

Fix uninitialised memory acccess in COFF bfd backend

2018-05-15  Christophe Guillon  <christophe.guillon@st.com>

	* coffcode.h (coff_bigobj_swap_aux_in): Make sure that all fields
	of the aux structure are initialised.

Change-Id: I81be255ac6611afbe00995fac550e98e6a07e5df