NSH Networking: Also add an option to let platform-specific logic select the MAC address.

configs/sama5d4-ek/nsh/defconfig

@@ -1168,8 +1168,20 @@ CONFIG_NSH_WGET_USERAGENT="NuttX/6.xx.x (; http://www.nuttx.org/)"
 # NSH Library
 #
 CONFIG_NSH_LIBRARY=y
+
+#
+# Command Line Configuration
+#
 CONFIG_NSH_READLINE=y
 # CONFIG_NSH_CLE is not set
+CONFIG_NSH_LINELEN=80
+# CONFIG_NSH_DISABLE_SEMICOLON is not set
+CONFIG_NSH_CMDPARMS=y
+CONFIG_NSH_TMPDIR="/tmp"
+CONFIG_NSH_MAXARGUMENTS=6
+CONFIG_NSH_ARGCAT=y
+CONFIG_NSH_NESTDEPTH=3
+# CONFIG_NSH_DISABLEBG is not set
 CONFIG_NSH_BUILTIN_APPS=y
 
 #
@@ -1226,17 +1238,13 @@ CONFIG_NSH_CODECS_BUFSIZE=128
 # CONFIG_NSH_CMDOPT_HEXDUMP is not set
 CONFIG_NSH_PROC_MOUNTPOUNT="/proc"
 CONFIG_NSH_FILEIOSIZE=512
-CONFIG_NSH_LINELEN=80
-# CONFIG_NSH_DISABLE_SEMICOLON is not set
-CONFIG_NSH_CMDPARMS=y
-CONFIG_NSH_TMPDIR="/tmp"
-CONFIG_NSH_MAXARGUMENTS=6
-CONFIG_NSH_ARGCAT=y
-CONFIG_NSH_NESTDEPTH=3
+
+#
+# Scripting Support
+#
 # CONFIG_NSH_DISABLESCRIPT is not set
 # CONFIG_NSH_DISABLE_ITEF is not set
 # CONFIG_NSH_DISABLE_LOOPS is not set
-# CONFIG_NSH_DISABLEBG is not set
 CONFIG_NSH_ROMFSETC=y
 # CONFIG_NSH_ROMFSRC is not set
 CONFIG_NSH_ROMFSMOUNTPT="/etc"
@@ -1248,13 +1256,30 @@ CONFIG_NSH_FATDEVNO=1
 CONFIG_NSH_FATSECTSIZE=512
 CONFIG_NSH_FATNSECTORS=1024
 CONFIG_NSH_FATMOUNTPT="/tmp"
-CONFIG_NSH_CONSOLE=y
-# CONFIG_NSH_USBKBD is not set
 
 #
-# USB Trace Support
+# Console Configuration
 #
+CONFIG_NSH_CONSOLE=y
+# CONFIG_NSH_USBKBD is not set
 CONFIG_NSH_ARCHINIT=y
+
+#
+# Networking Configuration
+#
+CONFIG_NSH_IPADDR=0x0a000002
+CONFIG_NSH_DRIPADDR=0x0a000001
+CONFIG_NSH_NETMASK=0xffffff00
+# CONFIG_NSH_DNS is not set
+CONFIG_NSH_NOMAC=y
+CONFIG_NSH_SWMAC=y
+# CONFIG_NSH_ARCHMAC is not set
+CONFIG_NSH_MACADDR=0x00e0deadbeef
+CONFIG_NSH_MAX_ROUNDTRIP=20
+
+#
+# Telnet Configuration
+#
 CONFIG_NSH_TELNET=y
 CONFIG_NSH_TELNETD_PORT=23
 CONFIG_NSH_TELNETD_DAEMONPRIO=100
@@ -1263,12 +1288,6 @@ CONFIG_NSH_TELNETD_CLIENTPRIO=100
 CONFIG_NSH_TELNETD_CLIENTSTACKSIZE=2048
 CONFIG_NSH_IOBUFFER_SIZE=512
 # CONFIG_NSH_TELNET_LOGIN is not set
-CONFIG_NSH_IPADDR=0x0a000002
-CONFIG_NSH_DRIPADDR=0x0a000001
-CONFIG_NSH_NETMASK=0xffffff00
-# CONFIG_NSH_DNS is not set
-CONFIG_NSH_NOMAC=y
-CONFIG_NSH_MAX_ROUNDTRIP=20
 
 #
 # NxWidgets/NxWM