top: ensure previously saved rcfile honored completely

top: ensure previously saved rcfile honored completely

When startup defaults were changed users with existing
rcfiles would likely find their previous configuration
was not being honored in all respects. The disparities
involved Graphs modes and Summary/Task memory scaling.

This patch simply restores what was always intended as
the proper behavior for previously saved config files.

References(s):
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762928
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=762947
. new startup defaults
commit 8ef6cd91fc5df6372a93bc4a37cbad34ead9654e

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