add support 4g -- >ppp

hc

2023-11-24 2b26ab132d1b33b91c84c6d732456200e8c5ee77

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# From: https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v4.4.2/sha256sums.asc
sha256 a979e194c2ed9fdfca092a448e626d85c5af0e4de5ad993c0967afd15af01285  backports-4.4.2-1.tar.xz