Change in coreboot[master]: util/crossgcc: Allow building a new gcc against new binutils with -D

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Change subject: util/crossgcc: Allow building a new gcc against new binutils with -D
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/29435/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/75385/ : SUCCESS

https://qa.coreboot.org/job/coreboot-toolchain/443/ : SUCCESS