boost: fix build for mips
Backport 2 patches to fix the build error on mips:
mips-poky-linux-g++: error: unrecognized command line option '-m32'
https://github.com/boostorg/build/commit/
c0634341d9ee2c02d3a55c91dafb988afc066c49
https://github.com/boostorg/build/commit/
9576ca216cae888d7efb5da97c009c245c5ba567
Apply the pacthes to both bjam-native and boost, so put the patches to
"files" dir.
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
