Add hidden_size 6144 (#329)

* Done
Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

* Add comment
Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

---------
Signed-off-by: Jee Jee Li <pandaleefree@gmail.com>

csrc/kernels/launch.cuh

@@ -88,6 +88,7 @@ cfg.dynamicSmemBytes = smem_size;
         case 2560: case_macro(2560); \
         case 4096: case_macro(4096); \
         case 5120: case_macro(5120); \
+        case 6144: case_macro(6144); /* For qwen3 coder */ \
         case 7168: case_macro(7168); \
         case 8192: case_macro(8192); \
         default: EP_HOST_ASSERT(false and "Unsupported hidden"); \