Add AVX2 path for TRSM+GEMM combination.

- Enabled AVX2 TRSM + GEMM kernel path, when GEMM is called
  from TRSM context it will invoke AVX2 GEMM kernels instead
  of the default AVX-512 GEMM kernels.

- The default context has the block sizes for AVX512 GEMM
  kernels, however, TRSM uses AVX2 GEMM kernels and they
  need different block sizes.

- Added new API bli_zen4_override_trsm_blkszs(). It overrides
  default block sizes in context with block sizes needed for
  AVX2 GEMM kernels.

- Added new API bli_zen4_restore_default_blkszs(). It restores
  The block sizes to there default values (as needed by default
   AVX512 GEMM kernels).

- Updated bli_trsm_front() to override the block sizes in the
  context needed by TRSM + AVX2 GEMM kernels and restore them
  to the default values at the end of this function. It is done
  in bli_trsm_front() so that we override the context before
  creating different threads.

AMD-Internal: [CPUPL-2225]
Change-Id: Ie92d0fc40f94a32dfb865fe3771dc14ed7884c55

frame/include/bli_type_defs.h

@@ -802,10 +802,11 @@ typedef enum
 	BLIS_GEMMTRSM_L_UKR,
 	BLIS_GEMMTRSM_U_UKR,
 	BLIS_TRSM_L_UKR,
-	BLIS_TRSM_U_UKR
+	BLIS_TRSM_U_UKR,
+	BLIS_GEMM_AVX2_UKR
 } l3ukr_t;
 
-#define BLIS_NUM_LEVEL3_UKRS 5
+#define BLIS_NUM_LEVEL3_UKRS 6
 
 
 typedef enum