generic: rename backport patch 752-03 to name with correct version

generic: rename backport patch 752-03 to name with correct version

Rename 752-03-v6.6-net-ethernet-mtk_eth_soc-rely-on-mtk_pse_port-defini.patch
to 752-03-v6.7-net-ethernet-mtk_eth_soc-rely-on-mtk_pse_port-defini.patch
because it is used since kernel 6.7 (https://lore.kernel.org/lkml/20231028011741.2400327-1-kuba@kernel.org/).
Link: https://web.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.7.y&id=5c33c09c89789ea45d2aac2471a28c9f90b04c95
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/18253
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>