make seaice_fgmres.F fit for multithreading; this first attempt appears to be a bit of a hack but it does not affect the results for 1 cpu with an without multithreading and with more than one cpu (without multithreading)
make seaice_fgmres.F fit for multithreading; this first attempt
appears to be a bit of a hack but it does not affect the results for 1
cpu with an without multithreading and with more than one cpu (without
multithreading)

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h