Changeset 1705 for LMDZ5/trunk/arch

Added arch files for ADA (IDRIS IBMx3750) and made the following code modifications:
phylmd/printflag.F : removed "print" of unset variable (radpas0)
dyn3dmem/integrd_loc.F : removed unecessary "include mpif.h"
dyn3dmem/leapfrog_loc.F : removed unecessary "include mpif.h" and allocate saved variables at first call
dyn3dmem/mod_filtreg_p.F : added matmul() alternatives to call to BLAS routine SGEMM (which was incorectly set as DGEMM; which would fail if running with -r4)
filtrez/filtreg.F: changed calls to DGEMM into calls to SGEMM, so that code works with either -r4 or -r8 (the later being used in conjunction with "BLAS SGEMV=DGEMV SGEMM=DGEMM" preprocessing statements)
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