[coreboot-gerrit] Change in coreboot[master]: drivers/spi/spi-generic: Make spi_setup_slave strong symbol

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Change subject: drivers/spi/spi-generic: Make spi_setup_slave strong symbol
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/9716/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/53979/ : SUCCESS