Bernhard Messerklinger 6dfc1f4c51 brppt1: Remove unused board variants
The SPI and NAND board variants never went into production.
Drop those board variants.

Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
2022-09-15 14:22:08 -04:00
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