net: Add Kconfig option for BOOTP_NTPSERVER

Add a Kconfig option for BOOTP_NTPSERVER to enable the DHCP/BOOTP option
to configure the sntp server address.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index eb14e08..38406fc 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1094,6 +1094,10 @@
 	default y
 	depends on CMD_BOOTP
 
+config BOOTP_NTPSERVER
+	bool "Request & store 'ntpserverip' from BOOTP/DHCP server"
+	depends on CMD_BOOTP
+
 config BOOTP_PXE
 	bool "Send PXE client arch to BOOTP/DHCP server"
 	default y
diff --git a/configs/devkit8000_defconfig b/configs/devkit8000_defconfig
index defed2d..4a096b9 100644
--- a/configs/devkit8000_defconfig
+++ b/configs/devkit8000_defconfig
@@ -18,6 +18,7 @@
 CONFIG_CMD_NAND=y
 CONFIG_CMD_NAND_LOCK_UNLOCK=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_BOOTP_NTPSERVER=y
 CONFIG_CMD_JFFS2=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nand0=nand"
diff --git a/include/configs/devkit8000.h b/include/configs/devkit8000.h
index 748e456..f36dc2d 100644
--- a/include/configs/devkit8000.h
+++ b/include/configs/devkit8000.h
@@ -76,7 +76,6 @@
 #define CONFIG_BOOTP_BOOTFILESIZE
 #define CONFIG_BOOTP_DNS2
 #define CONFIG_BOOTP_SEND_HOSTNAME
-#define CONFIG_BOOTP_NTPSERVER
 #define CONFIG_BOOTP_TIMEOFFSET
 #undef CONFIG_BOOTP_VENDOREX
 
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index bdbfcbe..71df6db 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -156,7 +156,6 @@
 CONFIG_BOOTP_ID_CACHE_SIZE
 CONFIG_BOOTP_MAY_FAIL
 CONFIG_BOOTP_NISDOMAIN
-CONFIG_BOOTP_NTPSERVER
 CONFIG_BOOTP_RANDOM_DELAY
 CONFIG_BOOTP_SEND_HOSTNAME
 CONFIG_BOOTP_SERVERIP