lantiq: remove linux 3.10 support

target/linux/lantiq/config-default

...antiq/patches-3.10/0001-MIPS-lantiq-add-pcie-driver.patch

...ches-3.10/0002-MIPS-lantiq-adds-minimal-dcdc-driver.patch

.../0004-MIPS-lantiq-falcon-add-cpu-feature-override.h.patch

...10/0005-MIPS-lantiq-falcon-fix-asc-clock-definition.patch

...lantiq/patches-3.10/0006-MIPS-lantiq-dtb-image-hack.patch

....10/0007-MIPS-lantiq-handle-vmmc-memory-reservation.patch

...hes-3.10/0008-NET-PHY-adds-driver-for-lantiq-PHY11G.patch

...x/lantiq/patches-3.10/0009-MIPS-lantiq-add-atm-hack.patch

.../0010-MIPS-lantiq-wifi-and-ethernet-eeprom-handling.patch

...0/0011-MIPS-lantiq-add-reset-controller-api-support.patch

...3.10/0012-MTD-m25p80-allow-loading-mtd-name-from-OF.patch

...13-MTD-lantiq-Add-NAND-support-on-Lantiq-Falcon-SoC.patch

...3.10/0014-MTD-lantiq-handle-NO_XIP-on-cfi0001-flash.patch

...ches-3.10/0015-MTD-lantiq-xway-fix-invalid-operator.patch

...TD-lantiq-xway-the-latched-command-should-be-persis.patch

...tches-3.10/0017-MTD-lantiq-xway-remove-endless-loop.patch

...TD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch

...hes-3.10/0019-NET-lantiq-adds-PHY11G-firmware-blobs.patch

...q/patches-3.10/0020-NET-MIPS-lantiq-adds-xrx200-net.patch