arm: octeontx: Add CMD_WDT

Enable WDT command for Octeon TX/TX2 boards.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Suneel Garapati <sgarapati@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
diff --git a/configs/octeontx_83xx_defconfig b/configs/octeontx_83xx_defconfig
index 60fcf6a..f5b0528 100644
--- a/configs/octeontx_83xx_defconfig
+++ b/configs/octeontx_83xx_defconfig
@@ -40,6 +40,7 @@
 CONFIG_CMD_PCI=y
 CONFIG_CMD_SF_TEST=y
 CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_TFTPPUT=y
 CONFIG_CMD_TFTPSRV=y