hostmot2: parse muxed vs regular encoder mds right
hostmot2: parse muxed vs regular encoder mds right

The same driver code gets used for muxed and regular (non-muxed) encoders,
but the firmware's MDs differ for them.  This commit makes the driver
handle the muxed & regular encoder MDs individually, as it should.

unseenlaser/linuxcnc,mhaberler/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/linuxcnc,bobvanderlinden/machinekit,narogon/linuxcnc,mhaberler/machinekit,araisrobo/linuxcnc,araisrobo/linuxcnc,Cid427/machinekit,unseenlaser/machinekit,jaguarcat79/ILC-with-LinuxCNC,araisrobo/linuxcnc,RunningLight/machinekit,aschiffler/linuxcnc,cdsteinkuehler/MachineKit,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,kinsamanka/machinekit,Cid427/machinekit,aschiffler/linuxcnc,cnc-club/linuxcnc,jaguarcat79/ILC-with-LinuxCNC,ArcEye/MK-Qt5,ikcalB/linuxcnc-mirror,EqAfrica/machinekit,bobvanderlinden/machinekit,araisrobo/machinekit,unseenlaser/machinekit,narogon/linuxcnc,cnc-club/linuxcnc,kinsamanka/machinekit,bmwiedemann/linuxcnc-mirror,araisrobo/machinekit,unseenlaser/linuxcnc,unseenlaser/linuxcnc,ianmcmahon/linuxcnc-mirror,araisrobo/machinekit,strahlex/machinekit,aschiffler/linuxcnc,kinsamanka/machinekit,araisrobo/machinekit,cnc-club/linuxcnc,EqAfrica/machinekit,RunningLight/machinekit,jaguarcat79/ILC-with-LinuxCNC,cdsteinkuehler/MachineKit,strahlex/machinekit,cdsteinkuehler/linuxcnc,kinsamanka/machinekit,araisrobo/machinekit,Cid427/machinekit,unseenlaser/machinekit,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,ArcEye/machinekit-testing,araisrobo/linuxcnc,ikcalB/linuxcnc-mirror,cdsteinkuehler/MachineKit,ArcEye/machinekit-testing,cdsteinkuehler/linuxcnc,unseenlaser/machinekit,araisrobo/machinekit,ikcalB/linuxcnc-mirror,strahlex/machinekit,RunningLight/machinekit,araisrobo/linuxcnc,Cid427/machinekit,narogon/linuxcnc,RunningLight/machinekit,bobvanderlinden/machinekit,ArcEye/machinekit-testing,cnc-club/linuxcnc,cdsteinkuehler/linuxcnc,bmwiedemann/linuxcnc-mirror,aschiffler/linuxcnc,mhaberler/machinekit,cdsteinkuehler/MachineKit,strahlex/machinekit,ArcEye/machinekit-testing,Cid427/machinekit,ianmcmahon/linuxcnc-mirror,jaguarcat79/ILC-with-LinuxCNC,EqAfrica/machinekit,ArcEye/machinekit-testing,araisrobo/machinekit,cdsteinkuehler/linuxcnc,Cid427/machinekit,Cid427/machinekit,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,cnc-club/linuxcnc,ArcEye/MK-Qt5,mhaberler/machinekit,ArcEye/MK-Qt5,bobvanderlinden/machinekit,bmwiedemann/linuxcnc-mirror,bmwiedemann/linuxcnc-mirror,EqAfrica/machinekit,cdsteinkuehler/MachineKit,kinsamanka/machinekit,RunningLight/machinekit,ArcEye/MK-Qt5,EqAfrica/machinekit,mhaberler/machinekit,aschiffler/linuxcnc,strahlex/machinekit,ArcEye/MK-Qt5,EqAfrica/machinekit,EqAfrica/machinekit,bmwiedemann/linuxcnc-mirror,araisrobo/machinekit,bmwiedemann/linuxcnc-mirror,mhaberler/machinekit,ianmcmahon/linuxcnc-mirror,araisrobo/machinekit,ianmcmahon/linuxcnc-mirror,ikcalB/linuxcnc-mirror,EqAfrica/machinekit,ArcEye/MK-Qt5,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,unseenlaser/machinekit,mhaberler/machinekit,ArcEye/machinekit-testing,cnc-club/linuxcnc,narogon/linuxcnc,ianmcmahon/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,unseenlaser/machinekit,bobvanderlinden/machinekit,strahlex/machinekit,kinsamanka/machinekit,kinsamanka/machinekit,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,jaguarcat79/ILC-with-LinuxCNC,RunningLight/machinekit,narogon/linuxcnc,strahlex/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,cnc-club/linuxcnc,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,unseenlaser/linuxcnc,RunningLight/machinekit,unseenlaser/linuxcnc,unseenlaser/machinekit,unseenlaser/machinekit,ianmcmahon/linuxcnc-mirror,kinsamanka/machinekit,Cid427/machinekit