Refresh patches. Remove upstreamed patches: - backport/080-v4.15-0001-arch-define-weak-abort.patch - backport/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch Update patch that no longer applies: pending/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch Fixes CVE-2017-8824. Compile-tested: octeon, x86/64. Runtime-tested: octeon, x86/64. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>