top: share the rcfile between master & newlib branches

Since the decision was made to also add that Linux-4.5
support (was only in this newlib branch) to our master
branch, a tweak to newlib's top is necessary. In order
to share the rcfile between them, any fields unique to
a branch must appear last in it's list of enumerators.

And the troublesome field in question above is CGNAME.

It doesn't matter if a unique field is on or off, only
that it, as a higher enum/char, appear after all other
shared fields. Otherwise one risks the 'corrupt' error
message from the top without that field or the display
of the wrong column in the top with that unique field.

[ and strictly speaking, the changes under top_nls.c ]
[ were technically not really necessary. however, we ]
[ choose to maintain strict ordering via enum value. ]

Signed-off-by: Jim Warner <james.warner@comcast.net>

top/top.h

@@ -180,8 +180,9 @@ enum pflag {
    EU_FV1, EU_FV2,
    EU_USE,
    EU_NS1, EU_NS2, EU_NS3, EU_NS4, EU_NS5, EU_NS6,
-   EU_LXC, EU_CGN,
+   EU_LXC,
    EU_RZA, EU_RZF, EU_RZL, EU_RZS,
+   EU_CGN,
 #ifdef USE_X_COLHDR
    // not really pflags, used with tbl indexing
    EU_MAXPFLGS