binutils/binutils: do not fwd declare struct stat (2.22).

For canadian cross to host i686-mingw32 fwd declaring
struct stat is not possible.
Instead #include <sys/stat.h>

Signed-off-by: Titus von Boxberg <titus@v9g.de>
Message-Id: <417a15d4277913841ddd.1353100974@tschetwerikow.boxberg.lan>
Patchwork-Id: 199733

 CT_EXPERIMENTAL=y

 CT_LOCAL_TARBALLS_DIR="${HOME}/src"

 CT_SAVE_TARBALLS=y

 CT_LOG_EXTRA=y

 CT_ARCH_m68k=y

 CT_KERNEL_linux=y

 CT_KERNEL_V_3_5_7=y

 CT_BINUTILS_V_2_21_1a=y

 CT_LIBC_UCLIBC_CONFIG_FILE="${CT_LIB_DIR}/samples/${CT_TARGET}/${CT_LIBC}-${CT_LIBC_VERSION}.config"

 CT_THREADS_LINUXTHREADS=y