Add check for Batch Matmul in GemmAssemblyDispatch

Relates to : COMPMID-5507
Change-Id: Ia2c4ea153ac2524ffa6b2a9c10f3a0318a8a67a1
Signed-off-by: Mohammed Suhail Munshi <MohammedSuhail.Munshi@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8509
Benchmark: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: SiCong Li <sicong.li@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/cpu/operators/internal/CpuGemmAssemblyDispatch.h b/src/cpu/operators/internal/CpuGemmAssemblyDispatch.h
index 691eeff..0c51c92 100644
--- a/src/cpu/operators/internal/CpuGemmAssemblyDispatch.h
+++ b/src/cpu/operators/internal/CpuGemmAssemblyDispatch.h
@@ -54,6 +54,7 @@
     bool                      fast_mode{ false };
     bool                      fixed_format{ false };
     arm_compute::WeightFormat weight_format{ arm_compute::WeightFormat::UNSPECIFIED };
+    bool                      reshape_b_only_on_first_run{ true };
 };
 
 /** Assembly kernel glue */