Linux kernel DTS files renamed spi-nor@0 node to flash@0 which effectively broke U-Boot to boot new Linux kernel versions correctly. So remove hardcoded spi-nor device tree path from Turris Omnia board code and replace it by searching for mtd node by compatible string. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>