[flashrom] [PATCH] add SPI interface support for Tunnel Creek chipset

[Feldschmid, Ingo]

The Intel Tunnel Creek chipset supports both an SPI and an LPC bus. Set
chipset table entry for Tunnel Creek to new function
"enable_flash_tunnelcreek", which will read the hardware straps and
return support for the bus that has been used for booting. This function
uses "ich_init_spi" with ich_generation set to 7 for initializing the
SPI bus if necessary. 

SPI functionality tested on actual hardware (see attached file
flashrom.log), Tunnel Creek LPC interface not tested yet (missing
hardware for that). 

Signed-off-by: Ingo Feldschmid <ifel at msc-ge.com>

 <<tunnelcreek.patch>>  <<flashrom.log>> 
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