[llvm/Orc] Fix ExecutionEngine module build breakage

This patch updates the llvm module map to reflect changes made in
`5efc71e119d4eba235209d262e7d171361a0b9be` and fixes the module builds
(`-DLLVM_ENABLE_MODULES=On`).

Differential Revision: https://reviews.llvm.org/D94057

Signed-off-by: Med Ismail Bennani <[email protected]>

Author: medismailben

llvm/include/llvm/module.modulemap

@@ -211,9 +211,9 @@ module LLVM_OrcSupport {
   requires cplusplus
 
   header "ExecutionEngine/Orc/OrcError.h"
-  header "ExecutionEngine/Orc/RPC/RPCUtils.h"
-  header "ExecutionEngine/Orc/RPC/RPCSerialization.h"
-  header "ExecutionEngine/Orc/RPC/RawByteChannel.h"
+  header "ExecutionEngine/Orc/Shared/RPCUtils.h"
+  header "ExecutionEngine/Orc/Shared/Serialization.h"
+  header "ExecutionEngine/Orc/Shared/RawByteChannel.h"
 
   export *
 }