Change in coreboot[master]: soc/intel/denverton_ns: Always enable SpeedStep

[Дмитрий Понаморев (Code Review)]

Attention is currently required from: Mariusz Szafrański, Paul Menzel, Suresh Bellampalli, Vanessa Eusebio, Angel Pons, Michal Motyl, Patrick Rudolph, King Sumo.
Дмитрий Понаморев has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/57669 )

Change subject: soc/intel/denverton_ns: Always enable SpeedStep
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Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/57669/comment/c3bdb043_e2d8ae33 
PS2, Line 12:
> Please add that to the commit message. […]

I have tested this on Intel(R) Atom(TM) CPU C3538 @ 2.10GHz. 
The operating system does not change the frequency. Always 800MHz.

Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
NUMA node(s):        1
Vendor ID:           GenuineIntel
CPU family:          6
Model:               95
Model name:          Intel(R) Atom(TM) CPU C3538 @ 2.10GHz
Stepping:            1
CPU MHz:             800.000
CPU max MHz:         2100,0000
CPU min MHz:         800,0000
BogoMIPS:            4200.00
Virtualization:      VT-x
L1d cache:           24K
L1i cache:           32K
L2 cache:            2048K
NUMA node0 CPU(s):   0-3

Commit Message:

https://review.coreboot.org/c/coreboot/+/57669/comment/b4b41274_0806857a 
PS3, Line 9: When SpeedStep is disabled on an Atom C3538, the maximum CPU clock
           : speed is limited to 800 MHz.
> This is the symptom. […]

Done