kernel: bump 5.15 to 5.15.162
Removed because they are upstream:
mediatek/patches-5.15/702-v5.17-net-mdio-add-helpers-to-extract-clause-45-regad-and-.patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=
a03c3a34692f8400a85ec1cc2b058c6880bb7e7b
realtek/patches-5.15/020-v5.17-net-mdio-add-helpers-to-extract-clause-45-regad-and-.patch
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=
a03c3a34692f8400a85ec1cc2b058c6880bb7e7b
Link: https://github.com/openwrt/openwrt/pull/15901
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>