removing parameters keepalive and reconnecttimeout for camd35|cs357x

When saving any reader out off webif the wrong parameters for camd35|cs357x will be removed out of configs.

git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9791 4b0bc96b-bc66-0410-9d44-ebda105a78c1