generic: 5.15: add missing tag for some backports patches

Add for mtd-parsers-trx-allow-to-use-on-MediaTek-MIPS-SoCs.patch and
hwmon-lm70-Add-ti-tmp125-support.patch the 5.18 tag as it was merged
in kernel 5.18.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

diff --git a/target/linux/generic/backport-5.15/410-mtd-next-mtd-parsers-trx-allow-to-use-on-MediaTek-MIPS-SoCs.patch b/target/linux/generic/backport-5.15/410-v5.18-mtd-parsers-trx-allow-to-use-on-MediaTek-MIPS-SoCs.patch
similarity index 100%
rename from target/linux/generic/backport-5.15/410-mtd-next-mtd-parsers-trx-allow-to-use-on-MediaTek-MIPS-SoCs.patch
rename to target/linux/generic/backport-5.15/410-v5.18-mtd-parsers-trx-allow-to-use-on-MediaTek-MIPS-SoCs.patch

diff --git a/target/linux/generic/backport-5.15/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch b/target/linux/generic/backport-5.15/870-v5.18-hwmon-lm70-Add-ti-tmp125-support.patch
similarity index 100%
rename from target/linux/generic/backport-5.15/870-hwmon-next-hwmon-lm70-Add-ti-tmp125-support.patch
rename to target/linux/generic/backport-5.15/870-v5.18-hwmon-lm70-Add-ti-tmp125-support.patch