K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-02-09T03:51:51.689211Z
K 7
svn:log
V 441
Normalize the declaration of i386_read_exec variable.

It is currently re-declared in sys/sysent.h which is a wrong place for
MD variable.  Which causes redeclaration error with gcc when
sys/sysent.h and machine/md_var.h are included both.

Remove it from sys/sysent.h and instead include machine/md_var.h when
needed, under #ifdef for both i386 and amd64.

Reported and tested by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END