xilinx: Enable led support for some boards

Enable led support for boards which have "gpio-leds" node.
And also for microblaze which is converted to DM_GPIO now.
Tested on zcu100.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/zynq_z_turn_defconfig b/configs/zynq_z_turn_defconfig
index d8170ec..ce3ec00 100644
--- a/configs/zynq_z_turn_defconfig
+++ b/configs/zynq_z_turn_defconfig
@@ -35,6 +35,8 @@
 CONFIG_FPGA_XILINX=y
 CONFIG_FPGA_ZYNQPL=y
 CONFIG_DM_GPIO=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_ZYNQ=y
 CONFIG_SPI_FLASH=y