Fix typo commmon -> common (#109248)

Author: xtqqczze

src/coreclr/nativeaot/Runtime/eventpipeinternal.cpp

@@ -161,7 +161,7 @@ EXTERN_C void QCALLTYPE EventPipeInternal_DeleteProvider(intptr_t provHandle)
     }
 }
 
-// All the runtime redefine this enum, should move to commmon code.
+// All the runtime redefine this enum, should move to common code.
 // https://github.com/dotnet/runtime/issues/87069
 enum class ActivityControlCode
 {

src/libraries/System.Private.CoreLib/src/System/Buffers/ArrayPoolEventSource.cs

@@ -108,7 +108,7 @@ internal unsafe void BufferAllocated(int bufferId, int bufferSize, int poolId, i
 
         /// <summary>
         /// Event raised when we attempt to free a buffer due to inactivity or memory pressure (by no longer
-        /// referencing it). It is possible (although not commmon) this buffer could be rented as we attempt
+        /// referencing it). It is possible (although not common) this buffer could be rented as we attempt
         /// to free it. A rent event before or after this event for the same ID, is a rare, but expected case.
         /// </summary>
         [Event(4, Level = EventLevel.Informational)]