SPIRV-LLVM-Translator: fix cross build

[ardadem]

Fixes the following build error;

-- The CXX compiler identification is GNU 10.2.1
-- The C compiler identification is GNU 10.2.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /builddir/.xbps-SPIRV-LLVM-Translator/wrappers/aarch64-linux-gnu-c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /builddir/.xbps-SPIRV-LLVM-Translator/wrappers/aarch64-linux-gnu-gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR) 
-- Could NOT find LibXml2 (missing: LIBXML2_LIBRARY LIBXML2_INCLUDE_DIR) 
CMake Error at /usr/aarch64-linux-gnu/usr/lib/cmake/llvm/LLVMExports.cmake:1386 (message):
  The imported target "sancov" references the file

     "/usr/aarch64-linux-gnu/usr/bin/sancov"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "/usr/aarch64-linux-gnu/usr/lib/cmake/llvm/LLVMExports.cmake"

  but not all the files it references.

Call Stack (most recent call first):
  /usr/aarch64-linux-gnu/usr/lib64/cmake/llvm/LLVMConfig.cmake:278 (include)
  CMakeLists.txt:36 (find_package)


-- Configuring incomplete, errors occurred!
See also "/builddir/SPIRV-LLVM-Translator-12.0.0/build/CMakeFiles/CMakeOutput.log".