gpu: jit: conv: fix performance with OHWI weights

Author: echeresh

src/gpu/jit/conv/config.cpp

@@ -592,11 +592,18 @@ bool can_use_2d_send(const conv_config_t &cfg, const layout_t &l, bool is_a) {
     // 2D messages does not support vnni format with 4 byte elements
     if (type_t(prb.b_data_type).size() >= 4) return false;
 
+    auto is_plain_wei_ok = [&]() {
+        if (l.is_empty()) return true;
+        for (auto *t : {"xba", "xab", "axb"}) {
+            if (matches_tag_strict(l, t)) return true;
+        }
+        return false;
+    };
+
     auto is_plain_ok = [&]() {
         if (is_a || prb.is_bwd_w) return matches_tag_strict(l, "axb");
-        if (is_b && l.is_empty()) return true;
-        if (is_b && prb.is_fwd) return matches_tag_strict(l, "xba");
-        if (is_b && prb.is_bwd_d) return matches_tag_strict(l, "xab");
+        bool is_wei = (is_b && prb.is_fwd) || (is_b && prb.is_bwd_d);
+        if (is_wei) return is_plain_wei_ok();
         return false;
     };