[M] Change in coreboot[master]: security/intel/txt: Create Intel TXT lib with helper functions

[Subrata Banik (Code Review)]

Attention is currently required from: Tarun Tuli, Sridhar Siricilla, Angel Pons, Lean Sheng Tan, Werner Zeh.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71573 )

Change subject: security/intel/txt: Create Intel TXT lib with helper functions
......................................................................

Patch Set 2:

(3 comments)

File src/security/intel/txt/romstage.c:

https://review.coreboot.org/c/coreboot/+/71573/comment/0fb9610d_de2d95e0 
PS1, Line 7: #include <cpu/x86/msr.h>
> Is this required? Can you please check?

Ack

https://review.coreboot.org/c/coreboot/+/71573/comment/bfc8093b_60af12af 
PS1, Line 10: #include <timer.h>
> This is not required.

Ack

https://review.coreboot.org/c/coreboot/+/71573/comment/706152a0_1fbecbbb 
PS1, Line 13: #include <security/tpm/tis.h>
> Is this required?

Ack