Recreate gcc8-fix-put-user.patch without context (!87)

gcc-fix-put-user.patch doesn't apply cleanly to any kernel that
includes commit 538094 ("ARM: 8051/1: put_user: fix possible data
corruption in put_user") or a backport of it because the surrounding
lines (context) of the patch are different:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=537094b64b229bf3ad146042f83e74cf6abe59df

This commit fixes the problem by removing the context from the patch. It
also changes linux-sony-amami, linux-sony-aries, and linux-sony-taoshan
to use the shared patch.

I have confirmed that all six affected kernels still compile. [skip ci]