cr50: make sure tpm reset in factory mode always happens
cr50: make sure tpm reset in factory mode always happens

When the chip is used in the factory harness, the AP device state is
set to off, which prevents tpm reset from being invoked, which in turn
prevent the certificate from being copied into NVMEM.

Let's not wait for the AP to be up when running in chip factory mode.

BRANCH=cr50
BUG=b:63686091
TEST=running cert installation procedure produces SPI dummy byte of
     c0c0c0c0... after the successful installation and of cbcbcbcb...
     after repeated cert installation attempts.

Change-Id: Ibc4ff50511dccd8412a380ec03fc5ff8a14b0282
Signed-off-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/594953
Tested-by: Marius Schilder <d423f2980be0298efdef7df239b147d21d472f26@chromium.org>
Reviewed-by: Marius Schilder <d423f2980be0298efdef7df239b147d21d472f26@chromium.org>
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec