kernel: bump 5.4 to 5.4.28
Changelog since 5.4.24 mentions CVE-2019-19769, CVE-2020-8648,
CVE-2020-8649 and CVE-2020-8647.
Removed upstreamed:
generic: 507-v5.6-iio-chemical-sps30-fix-missing-triggered-buffer-depe.patch
generic: 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch
bcm27xx: 950-0435-ASoC-pcm512x-Fix-unbalanced-regulator-enable-call-in.patch
ipq806x: 701-stmmac-fix-notifier-registration.patch
lantiq: 002-pinctrl-falcon-fix-syntax-error.patch
octeontx: 0002-net-thunderx-workaround-BGX-TX-Underflow-issue.patch
Run tested: apu2, qemu-x86-64, apalis, a64-olinuxino, nbg6617
Build tested: sunxi/a53, imx6, x86/64, ipq40xx
Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> [apu2]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
