MIPS: config: lemote2f: Regenerate defconfig

Regenerate defconfig to include some drivers that are used
by this platform, including sm712fb, simplefb, rtl8187.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>