Update clang format file

Updated clang format file from docs repo to match with clang-format 10.
Also fixed some of files as per new clang format.

Change-Id: I36277447722e5c52dac49e0da745b0b0e870d298
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
diff --git a/src/usb-dbg.cpp b/src/usb-dbg.cpp
index 7d5f74e..2588f81 100644
--- a/src/usb-dbg.cpp
+++ b/src/usb-dbg.cpp
@@ -105,8 +105,7 @@
     uint8_t overwrite;
     time_t mtime;
     frame() : buf(NULL), pages(0), mtime(0)
-    {
-    }
+    {}
     int init(size_t size);
     int append(const char* string, int indent);
     int insert(const char* string, int indent);