boost: fix build for x32
Commit:
d336110b94 boost: update to 1.67.0
dropped the patch that ensured boost doesn't over-ride the architecture flags
set by us resulting in errors:
| build/tmp/work/x86_64_x32-poky-linux-gnux32/boost/1.69.0-r0/recipe-sysroot/usr/include/bits/long-double.h:44:10: fatal error: bits/long-double-64.h: No such file or directory
| #include <bits/long-double-64.h>
| ^~~~~~~~~~~~~~~~~~~~~~~
| compilation terminated.
Remove the relevant part from gcc.jam again to ensure we are passing
them correctly again.
Fixes [YOCTO #13598]
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>