Port packer fix for partial faces from WH B0 & matmul calculation for partial face/narrow tile combination on input #29
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This PR fixes handling of tiny tiles on output. There were 2 underlying issues:
Incorrect value set in register for exponent size in BFP formats for tinyt tiles. Fixed with porting from tenstorrent/tt-llk-wh-b0@4c00430
Incorrect matmul calculation when in0 has partial tile and in1 has narrow tile (resulting in output having tiny tile as well)