rpc: include stdint.h where necessary
libnetworking: remove typedef of uintptr_t
do not copy inttypes.h, stdint.h (they are provided by newlib)
powerpc: rtems/score/types.h: typedef unsigned32 as uint32_t, et al
Merge branch 'feat-rtems-4.6.2-stdint-newlib' into feat-rtems-4.6.2-gcc-4.8.x-01