Enable Arpanet NCP for KA ITS.

Author: larsbrinkhoff

build/pdp10-ka/config.202

@@ -238,7 +238,7 @@ DEFOPT KAIMP==1
 DEFOPT IMPUS==306	; ARPA net host number
 DEFOPT IMPUS3==<IPADDR %IP%>	; IP address
 DEFOPT NM%IMP==0	; Subnet mask (doesn't appear to work if set to real mask)
-DEFOPT NCPP==0		; Flush NCP code
+DEFOPT NCPP==1		; Arpanet NCP code
 DEFOPT NNETCH==20.	; # NCP net channels
 DEFOPT INETP==1		; Include Internet code
 DEFOPT TCPP==1		; Include TCP code