util/crossgcc/buildgcc: Disable LLVM_INCLUDE_{TESTS,EXAMPLES}

Building of LLVM tests and examples is enabled by default, but they are
not necessary. Thus disable them.

Change-Id: I58b09e276967e97856da65e5876b27f0bae3f0cc
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69942
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>

util/crossgcc/buildgcc

@@ -849,6 +849,8 @@ build_LLVM() {
 		-DCLANG_VENDOR="coreboot toolchain v$CROSSGCC_VERSION - " \
 		-DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;compiler-rt" \
 		-DLLVM_INCLUDE_BENCHMARKS="OFF" \
+		-DLLVM_INCLUDE_TESTS="OFF" \
+		-DLLVM_INCLUDE_EXAMPLES="OFF" \
 		-DCMAKE_BUILD_TYPE=Release \
 		-DLLVM_TARGETS_TO_BUILD="AArch64;ARM;PowerPC;RISCV;X86" \
 		../llvm || touch .failed