new: XMC QH64AHIG PPA77200 18 2033C

[Eric Starke]

flashrom reported to me, that it found an unknown chip. In the 
schematics the chip name is: W25Q64JVSSIQ_SO8, but the marking on the 
chip states: XMC QH64AHIG PPA77200 18 2033C. Reading the chip worked so 
far. If you need more information, please e-mail me and I see what I can do.

Thanks for maintaining this awesome software