[lldb][sbdebugger] Match progress category enum bit in Debugger.h

When the `eBroadcastBitProgressCategory` bit was originally added to
Debugger.h and SBDebugger.h, each corresponding bit was added in order
of the other bits that were previously there. Since `Debugger.h` has an
enum bit that `SBDebugger.h` does not, this meant that their offsets did
not match. This commit changes it so that the bit offsets match each other.

Author: chelcassanova

lldb/include/lldb/API/SBDebugger.h

@@ -42,11 +42,13 @@ class LLDB_API SBInputReader {
 
 class LLDB_API SBDebugger {
 public:
+  // The enum values here need to match their corresponding values in
+  // Debugger.h.
   FLAGS_ANONYMOUS_ENUM(){
       eBroadcastBitProgress = (1 << 0),
       eBroadcastBitWarning = (1 << 1),
       eBroadcastBitError = (1 << 2),
-      eBroadcastBitProgressCategory = (1 << 3),
+      eBroadcastBitProgressCategory = (1 << 4),
   };
 
   SBDebugger();