add the ignore

.ignore_format.yml

@@ -6,5 +6,4 @@ file_path:
 - bsp/allwinner_tina/libcpu/cpu.c
 
 dir_path:
-- tools
-- bsp/nrf51822
+- tools

bsp/nrf51822/.ignore_format.yml

@@ -0,0 +1,10 @@
+# files format check exclude path, please follow the instructions below to modify; 
+# If you need to exclude an entire folder, add the folder path in dir_path;
+# If you need to exclude a file, add the path to the file in file_path.
+
+file_path:
+
+dir_path:
+- Libraries
+- applications
+- drivers