[S] Change in flashrom[master]: jedec.c: Use JEDEC_ define from spi.h over magic

[Stefan Reinauer (Code Review)]

Attention is currently required from: Edward O'Callaghan.

Stefan Reinauer has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/72632 )

Change subject: jedec.c: Use JEDEC_ define from spi.h over magic
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
```
jedec.c: In function 'probe_jedec_29gl':
jedec.c:135:28: error: 'JEDEC_REMS' undeclared (first use in this function)
  135 |         chip_writeb(flash, JEDEC_REMS, bios + (0x5555 & mask));
      |                            ^~~~~~~~~~
jedec.c:135:28: note: each undeclared identifier is reported only once for each function it appears in
jedec.c: In function 'probe_jedec':
jedec.c:219:28: error: 'JEDEC_REMS' undeclared (first use in this function)
  219 |         chip_writeb(flash, JEDEC_REMS, bios + ((shifted ? 0x2AAA : 0x5555) & mask));
      |                            ^~~~~~~~~~
```