generic: rename backport patches to names containing version

Rename 770-net-introduce-napi_is_scheduled-helper.patch
to 770-v6.7-net-introduce-napi_is_scheduled-helper.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=7f3eb2174512fe6c9c0f062e96eccb0d3cc6d5cd
Rename 751-01-STABLE-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch
to 751-01-v6.8-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch
because it is used since kernel 6.8.12 (https://lore.kernel.org/lkml/2024053036-matron-confess-13e0@gregkh/).
Link: https://web.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.8.y&id=b411384df5814fe6fd861d4869607577bcec73a1
Rename 751-02-STABLE-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch
to 751-02-v6.8-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch
because it is used since kernel 6.8.12 (https://lore.kernel.org/lkml/2024053036-matron-confess-13e0@gregkh/).
Link: https://web.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.8.y&id=0849f56b5146b70f2da328b1d178d0a3c53d6846
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>

diff --git a/target/linux/generic/backport-6.6/751-01-STABLE-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch b/target/linux/generic/backport-6.6/751-01-v6.8-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch
similarity index 100%
rename from target/linux/generic/backport-6.6/751-01-STABLE-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch
rename to target/linux/generic/backport-6.6/751-01-v6.8-net-ethernet-mediatek-split-tx-and-rx-fields-in-mtk_.patch

diff --git a/target/linux/generic/backport-6.6/751-02-STABLE-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch b/target/linux/generic/backport-6.6/751-02-v6.8-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch
similarity index 100%
rename from target/linux/generic/backport-6.6/751-02-STABLE-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch
rename to target/linux/generic/backport-6.6/751-02-v6.8-net-ethernet-mediatek-use-QDMA-instead-of-ADMAv2-on-.patch

diff --git a/target/linux/generic/backport-6.6/770-net-introduce-napi_is_scheduled-helper.patch b/target/linux/generic/backport-6.6/770-v6.7-net-introduce-napi_is_scheduled-helper.patch
similarity index 100%
rename from target/linux/generic/backport-6.6/770-net-introduce-napi_is_scheduled-helper.patch
rename to target/linux/generic/backport-6.6/770-v6.7-net-introduce-napi_is_scheduled-helper.patch