microblaze: configs: adi_mb_defconfig: update ADI config

This updates fixes two issues:

1) This is likely a long standing one where we FPU support as extended
   but none is synthesised in HDL. So remove it.
2) The second is introduced by the 2025.1 merge where
   CONFIG_XILINX_AXI_EMAC now depends on CONFIG_XILINX_DMA. Hence, we
   need to set both of them.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>

Author: nunojsa

arch/microblaze/configs/adi_mb_defconfig

@@ -14,7 +14,6 @@ CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
 CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
 CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
 CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=2
-CONFIG_XILINX_MICROBLAZE0_USE_FPU=2
 CONFIG_HZ_100=y
 CONFIG_ADVANCED_OPTIONS=y
 CONFIG_HIGHMEM=y
@@ -111,6 +110,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_VIA is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
 CONFIG_XILINX_EMACLITE=y
+CONFIG_XILINX_AXI_EMAC=y
 CONFIG_XILINX_LL_TEMAC=y
 CONFIG_MARVELL_PHY=y
 CONFIG_DP83867_PHY=y
@@ -147,6 +147,7 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
 # CONFIG_USB_SUPPORT is not set
 CONFIG_DMADEVICES=y
 CONFIG_AXI_DMAC=y
+CONFIG_XILINX_DMA=y
 CONFIG_STAGING=y
 CONFIG_COMMON_CLK_SI570=y
 CONFIG_COMMON_CLK_SI5324=y