clang: disable all test targets

We don't install the tests, or run them in the build tree, so tell cmake
not to generate the targets at all. This removes internal dependencies
which means we can turn off more components that we don't want.

(From OE-Core rev: ba358a03c97cb904248b743c483a7b3f4b9159a9)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/clang/clang_git.bb

@@ -120,6 +120,7 @@ EXTRA_OECMAKE += "-DLLVM_ENABLE_ASSERTIONS=OFF \
                   -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD='${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD}' \
                   -DLLVM_NATIVE_TOOL_DIR=${STAGING_BINDIR_NATIVE} \
                   -DLLVM_HEADERS_TABLEGEN=${STAGING_BINDIR_NATIVE}/llvm-min-tblgen \
+                  -DLLVM_INCLUDE_TESTS=OFF \
 "
 
 EXTRA_OECMAKE:append:class-nativesdk = "\