Move tilegx, tilepro, and linux-generic from ports to libc.

I've moved the TILE-Gx and TILEPro ports to the main sysdeps hierarchy,
along with the linux-generic ports infrastructure.  Beyond the README
update, the move was just

    git mv ports/sysdeps/tile sysdeps/tile
    git mv ports/sysdeps/unix/sysv/linux/tile \
      sysdeps/unix/sysv/linux/tile
    git mv ports/sysdeps/unix/sysv/linux/generic \
      sysdeps/unix/sysv/linux/generic

I updated the relevant ChangeLogs along the lines of the ARM move
in commit c6bfe5c4d75 and tested the 64-bit tilegx build to confirm that
there were no changes in "objdump -dr" output in the shared objects.

1 files changed, 0 insertions, 45 deletions

diff --git a/ports/sysdeps/unix/sysv/linux/generic/utimes.c b/ports/sysdeps/unix/sysv/linux/generic/utimes.c
deleted file mode 100644
index e0abd7290a..0000000000
--- a/ports/sysdeps/unix/sysv/linux/generic/utimes.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <stddef.h>
-#include <utime.h>
-#include <fcntl.h>
-#include <sys/time.h>
-#include <sysdep.h>
-
-
-/* Change the access time of FILE to TVP[0] and
-   the modification time of FILE to TVP[1].  */
-int
-__utimes (const char *file, const struct timeval tvp[2])
-{
-  struct timespec ts[2];
-  struct timespec *tsp = NULL;
-
-  if (tvp)
-    {
-      TIMEVAL_TO_TIMESPEC (&tvp[0], &ts[0]);
-      TIMEVAL_TO_TIMESPEC (&tvp[1], &ts[1]);
-      tsp = &ts[0];
-    }
-
-  return INLINE_SYSCALL (utimensat, 4, AT_FDCWD, file, tsp, 0);
-}
-
-weak_alias (__utimes, utimes)