dfl: disable CONFIG_FPGA_DFL_ETH_GROUP

Since the ethernet group was rejected by Linux kernel,
remove the config variable since it is replaced with CONFIG_DFL_UIO.

Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>

Author: matthew-gerlach

configs/n3000_d5005_defconfig

@@ -24,7 +24,7 @@ CONFIG_MFD_INTEL_M10_BMC=m
 
 CONFIG_SPI_ALTERA=m
 
-CONFIG_FPGA_DFL_ETH_GROUP=m
+# CONFIG_FPGA_DFL_ETH_GROUP is not set
 CONFIG_INTEL_S10_PHY=m
 CONFIG_INTEL_M10_BMC_RETIMER=m
 CONFIG_S10HSSI=m