Update revision of Clang and SPIRV translator

Also patches for SPIR-V translator was updated to be applied cleanly on top
of llvm_release_80 branch.

Author: AlexeySotkin

CMakeLists.txt

@@ -81,10 +81,10 @@ set(TARGET_NAME ${COMMON_CLANG_LIBRARY_NAME}${BUILD_PLATFORM} )
 if(NOT USE_PREBUILT_LLVM)
     set(TARGET_BRANCH "ocl-open-80")
     set(CLANG_SOURCE_DIR ${LLVM_SOURCE_DIR}/tools/clang)
-    set(CLANG_BASE_REVISION ccfe04576c13497b9c422ceef0b6efe99077a392)
+    set(CLANG_BASE_REVISION 2e4c9c5fc864c2c432e4c262a67c42d824b265c6)
 
     set(SPIRV_SOURCE_DIR ${LLVM_SOURCE_DIR}/projects/llvm-spirv)
-    set(SPIRV_BASE_REVISION 6b3920fed310f223b1a69b0273eb7c243d9f6257)
+    set(SPIRV_BASE_REVISION 1d48cd84d04a2f60b43ea3f66eb7c86f4e5973a9)
 
     apply_patches(${CLANG_SOURCE_DIR}
                   ${CMAKE_CURRENT_SOURCE_DIR}/patches/clang