[L] Change in libgfxinit[master]: common: Begin Tiger Lake integration

[Nico Huber (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Angel Pons, Arthur Heymans.

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/libgfxinit/+/65087 )

Change subject: common: Begin Tiger Lake integration
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Patch Set 8: Verified+1 Code-Review+1

(10 comments)

Commit Message:

https://review.coreboot.org/c/libgfxinit/+/65087/comment/d513030a_c67f052b 
PS8, Line 10: .
Nit, the period should be after the quotation.

Patchset:

PS8: 
Looks good overall and verification passes (with warnings because nothing
is implemented of course). Will probably have to get back to this change once
I've looked into everything.

File common/hw-gfx-gma-config.ads.template:

https://review.coreboot.org/c/libgfxinit/+/65087/comment/f9327735_21cef9c3 
PS8, Line 38: =>
Please align up.

https://review.coreboot.org/c/libgfxinit/+/65087/comment/74579d39_bc1921cb 
PS8, Line 186: hswsklbool
I supposse this and the next are `hswskltglbool` as well then.

https://review.coreboot.org/c/libgfxinit/+/65087/comment/c2dcbe5c_ab3c706b 
PS8, Line 327: tglhswvar
I think this one should stay `hswvar`. Meaning, if the generation is Haswell,
this can be variable at runtime. But for Tiger Lake it's always 6.

https://review.coreboot.org/c/libgfxinit/+/65087/comment/f028d648_722375ec 
PS8, Line 504:    function Is_Tiger_Lake (Device_Id : Word16) return Boolean is
             :      (Is_Tiger_Lake_U (Device_Id) or Is_Tiger_Lake_H (Device_Id));
Do we need this function?

https://review.coreboot.org/c/libgfxinit/+/65087/comment/3fb20b1d_c8b7c6cd 
PS8, Line 545: 				   Is_Tiger_Lake_U (Device_Id)));
No tabs, please.

File common/hw-gfx-gma-config_helpers.adb:

https://review.coreboot.org/c/libgfxinit/+/65087/comment/3084ddef_c504a7ba 
PS8, Line 53: ????
You couldn't test or you are unsure or...?

File common/hw-gfx-gma.adb:

https://review.coreboot.org/c/libgfxinit/+/65087/comment/b7e003d5_a85847ff 
PS8, Line 58:    
A little spurious indentation

https://review.coreboot.org/c/libgfxinit/+/65087/comment/d2a68324_470189e7 
PS8, Line 59: =>
Please align up