libc/glibc: fix cross-compiling to i686

In OE-lite we use the attached patch for building i686 cross compilers.
Thanks to Khem Raj for original patch :-)

At the same time, remove the corresponding patch that was in
the ports patchset.

CC: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Esben Haabendal <eha@dev.doredevelopment.dk>
[yann.morin.1998@anciens.enib.fr: remove patch from ports]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 # Super-H specific configuration file

 config ARCH_sh

     select ARCH_SUPPORTS_32

     select ARCH_DEFAULT_32

     select ARCH_USE_MMU

     select ARCH_SUPPORTS_BOTH_ENDIAN

     select ARCH_DEFAULT_LE

     help

       The Super-H architecture, as defined by:

         http://www.renesas.com/fmwk.jsp?cnt=superh_family_landing.jsp&fp=/products/mpumcu/superh_family/