Fix Incorrect output for A or B with dim=1 in GEMM

[w8501]

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Fixed a bug in the GEMM layer where incorrect shapes of M, N, and K occurred when matrix A or matrix B had dim=1, leading to incorrect output results

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.91%. Comparing base (c45c01c) to head (b67eefc). Report is 324 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #4890       +/-   ##
===========================================
+ Coverage   89.81%   94.91%    +5.09%     
===========================================
  Files         306      776      +470     
  Lines       86875   226096   +139221     
===========================================
+ Hits        78024   214589   +136565     
- Misses       8851    11507     +2656     

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