package/binutils: add version 2.35.1

See:
https://sourceware.org/pipermail/binutils/2020-July/112530.html (2.35)
https://sourceware.org/pipermail/binutils/2020-September/113375.html (2.35.1)

Tested by https://gitlab.com/kubu93/buildroot/-/pipelines/197379288



Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>