Add support for Qihoo 5S

Specification: (Chinese only)
Some information about it:
SoC: RTL8197FS 1.0GHz (Not Lexra, MIPS 24Kc)
Flash: 16MiB
RAM: 128MiB
Original ROM:

Has anyone tried it? Is it supported? If not, are there any plans to add support to it?

Post a photo of the PCB, locate the serial port, connect to it, and post the boot output.

Try to interrupt the bootloader, post output of the help and printenv commands.