Add missing LLVM library interdependencies (#3301)

lib/DxilContainer/LLVMBuild.txt

@@ -13,4 +13,4 @@
 type = Library
 name = DxilContainer
 parent = Libraries
-required_libraries = BitReader Core DxcSupport IPA Support
+required_libraries = BitReader BitWriter Core DxcSupport IPA Support

lib/HLSL/LLVMBuild.txt

@@ -13,4 +13,4 @@
 type = Library
 name = HLSL
 parent = Libraries
-required_libraries = BitReader Core DxcSupport IPA Support DXIL
+required_libraries = BitReader Core DxcSupport DxilContainer IPA Support DXIL