feat(tpm): add Infineon SLB9670 GPIO SPI config

add the Infineon Optiga SLB9670 TPM2.0 GPIO SPI
configuration data, as well as chip reset and the
GPIO SPI bitbang driver initialization. This code
supports use with the rpi3 platform, with availibility
to add configuration parameters for other platforms

Change-Id: Ibdffb28fa0b3b5a18dff2ba5d4ea305633740763
Signed-off-by: Abhi Singh <abhi.singh@arm.com>
2 files changed