buildroot

glibc: add patches to fix sh4 compile issue

Fixes:

  https://bugs.busybox.net/show_bug.cgi?id=9756

[Peter: drop 2.25.x patch]
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
[Thomas: rework patches as Git formatted patches, fix numbering.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 5f2cff973a8a64411d85ccb9d5c9a40962d67552)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>