Update config, Makefile and image/Makefile.
Directly switch to kernel 5.10.
This patch was tested in nSIM simulator, no errors appeared.
Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Paul Spooren <mail@aparcar.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: John Crispin <john@phrozen.org>
