cc/gcc: add MIPS spercific configure options

Add the following MIPS specific options when configuring gcc:
--with(out)-llsc
--with(out)-synci
--with(out)-mips-plt
--with-divide=type

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 # m68k specific configuration file

 ## depends on EXPERIMENTAL

 ##

 ## select ARCH_SUPPORTS_32

 ## select ARCH_DEFAULT_32

 ## select ARCH_DEFAULT_BE

 ## select ARCH_SUPPORT_CPU

 ##

 ## help The m68k architecture