ARM: zynq: cse: Disable autoboot feature

Intention of CSE targets is not boot anything that's why also bootdelay
is not necessary

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/zynq_cse_nor_defconfig b/configs/zynq_cse_nor_defconfig
index b4831f8..addc21f 100644
--- a/configs/zynq_cse_nor_defconfig
+++ b/configs/zynq_cse_nor_defconfig
@@ -6,11 +6,11 @@
 CONFIG_SPL=y
 CONFIG_SPL_STACK_R_ADDR=0x200000
 CONFIG_SYS_MALLOC_LEN=0x1000
-CONFIG_BOOTDELAY=-1
 # CONFIG_BOARD_LATE_INIT is not set
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_SPL_STACK_R=y
 CONFIG_SYS_PROMPT="Zynq> "
+# CONFIG_AUTOBOOT is not set
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_CONSOLE is not set
 # CONFIG_CMD_BOOTD is not set