[binutils-gdb] i386-dis: Check valid bnd register

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 0d96e4df4812c3bad77c229dfef47a9bc115ac12 ***

Author: H.J. Lu <hjl.tools@gmail.com>
Branch: master
Commit: 0d96e4df4812c3bad77c229dfef47a9bc115ac12

i386-dis: Check valid bnd register

Since there are only 4 bnd registers, return "(bad)" for register
number > 3.

	PR binutils/21594
	* i386-dis.c (OP_E_register): Check valid bnd register.
	(OP_G): Likewise.