add support for generic eb214a, thanks cezary (#7027)

target/linux/adm5120/base-files/lib/adm5120.sh

target/linux/adm5120/files/arch/mips/adm5120/Kconfig

target/linux/adm5120/files/arch/mips/adm5120/common/prom.c

...et/linux/adm5120/files/arch/mips/adm5120/generic/Makefile

...t/linux/adm5120/files/arch/mips/adm5120/generic/eb-214a.c

...0/files/arch/mips/include/asm/mach-adm5120/adm5120_info.h

target/linux/adm5120/files/arch/mips/pci/pci-adm5120.c

target/linux/adm5120/image/router_le.mk

target/linux/adm5120/patches-2.6.32/001-adm5120.patch

target/linux/adm5120/patches-2.6.33/001-adm5120.patch

target/linux/adm5120/patches-2.6.34/001-adm5120.patch

target/linux/adm5120/patches-2.6.35/001-adm5120.patch

target/linux/adm5120/router_le/config-2.6.32

target/linux/adm5120/router_le/config-2.6.33

target/linux/adm5120/router_le/config-2.6.34

target/linux/adm5120/router_le/config-2.6.35

target/linux/adm5120/router_le/profiles/010-Generic.mk