[S] Change in coreboot[master]: mb/google/rex: Disable stage cache

[build bot (Jenkins) (Code Review)]

Attention is currently required from: Tarun Tuli, Kapil Porwal.

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71695 )

Change subject: mb/google/rex: Disable stage cache
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Patch Set 1:

(3 comments)

Commit Message:

Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-167810):
https://review.coreboot.org/c/coreboot/+/71695/comment/a7ae321a_4a19bd5a 
PS1, Line 15: Boot time before:
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-167810):
https://review.coreboot.org/c/coreboot/+/71695/comment/011a5ef0_95031c37 
PS1, Line 16:    4:end of romstage                                   1,391,225 (13,724)
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Robot Comment from checkpatch (run ID jenkins-coreboot-checkpatch-167810):
https://review.coreboot.org/c/coreboot/+/71695/comment/f553e444_dc3b06a1 
PS1, Line 20:    4:end of romstage                                   1,380,262 (5,618)
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