binutils: arc: fix 0301-PATCH-check-ldrunpath-length.patch after version bump

binutils: arc: fix 0301-PATCH-check-ldrunpath-length.patch after version bump

This commit fixes another brown-paper-bag issue that I've introduced by
my following patch:
toolchain: Bump ARC tools to arc-2017.03-rc1
(5f8ef7e25c5cc5c2e4ae4c8b6e8caa029ddf9a94)

arc-2017.03-rc1 differs a bit from 2.28. And so corresponding
of-the-tree patch should be updated appropriately.

Fixes target binutils build for arc:
http://autobuild.buildroot.net/results/f67/f67c905979870936d8050a505b61186be6dad85d//

[Peter: tweak commit message]
Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>