RTOS: reduce DAP polling delay - improves throughput.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>

src/main.c

diff --git a/src/main.c b/src/main.c
index 1ec28e2..620899a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -80,7 +80,7 @@
             tud_vendor_flush();
         } else {
             // Trivial delay to save power
-            vTaskDelay(2);
+            vTaskDelay(1);
         }
     } while (1);
 }