cc/gcc: fix patches for 4.6.{0,1}

Remove the sparc part, as it touches code that does not exist in
those versions of gcc (it was added at 4.6.2).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
CC: Florian Fainelli <f.fainelli@gmail.com>

 # m68k specific configuration file

 ## depends on EXPERIMENTAL

 ##

 ## select ARCH_SUPPORTS_32

 ## select ARCH_DEFAULT_32

 ## select ARCH_DEFAULT_BE

 ## select ARCH_SUPPORTS_WITH_CPU

 ##

 ## help The m68k architecture