[coreboot] [patch] Add missing FID support check in raminit_f.c

[Dan Lykowski]

Added FID check in raminit_f.c.
Same problem that was fixed by my last patch just in a different location. 
Trying to read MSR(0xC0010042) causes a GP fault on a processor that does not support changing FIDVID.

I believe that if the FID support check fails the startup FID should be used. 
It can be read from MSR(0xC0010015).

Thanks,
Dan Lykowski

Signed-off-by: Dan Lykowski

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