Disabled no post-ops path in lpgemm f32 kernels for few gcc versions

Guarded np (no post-ops) path in f32 API with a macro 
 as a workaround as gcc 11.4 and 11.2 are giving accuracy issues 
 with np path.

addon/aocl_gemm/kernels/lpgemm_kernels.h

@@ -47,6 +47,11 @@
 //#define DUMP_JIT_CODE
 #endif
 
+
+#if ( defined( BLIS_GCC ) && ( ( __GNUC__ >= 12 ) ) )
+    #define BLIS_GCC_12_ABOVE
+#endif
+
 typedef void (*lpgemm_m_fringe_f32_ker_ft)
     (
        const dim_t         k0,