Ports: Make the LLVM port install its ocaml bindings somewhere else

By default the bindings go to /usr/local on the host, which is a very
big no-no; this path is not affected by CMAKE_INSTALL_PREFIX, so this
commit sets the LLVM_OCAML_INSTALL_PATH variable instead.
It should be noted that disabling the ocaml bindings doesn't make all
the users of this variable go away, so this commit doesn't do so.

This also sorts the -DFOO options passed to cmake, because...sorting.

Ports/llvm/package.sh

@@ -36,15 +36,15 @@ configure() {
     cmake ${workdir}/llvm \
         -G Ninja \
         -B llvm-build "${configopts[@]}" \
-        -DCMAKE_BUILD_TYPE=MinSizeRel \
-        -DCMAKE_FIND_ROOT_PATH="$SERENITY_BUILD_DIR"/Root \
-        -DCROSS_TOOLCHAIN_FLAGS_NATIVE="-DCMAKE_C_COMPILER=$CC;-DCMAKE_CXX_COMPILER=$CXX" \
         -DCLANG_DEFAULT_CXX_STDLIB=$stdlib \
         -DCLANG_DEFAULT_UNWINDLIB=$unwindlib \
+        -DCMAKE_BUILD_TYPE=MinSizeRel \
+        -DCMAKE_FIND_ROOT_PATH="$SERENITY_BUILD_DIR"/Root \
         -DCOMPILER_RT_BUILD_CRT=ON \
         -DCOMPILER_RT_BUILD_ORC=OFF \
         -DCOMPILER_RT_EXCLUDE_ATOMIC_BUILTIN=$exclude_atomic_builtin \
         -DCOMPILER_RT_OS_DIR=serenity \
+        -DCROSS_TOOLCHAIN_FLAGS_NATIVE="-DCMAKE_C_COMPILER=$CC;-DCMAKE_CXX_COMPILER=$CXX" \
         -DHAVE_LIBRT=OFF \
         -DLLVM_DEFAULT_TARGET_TRIPLE=$SERENITY_ARCH-pc-serenity \
         -DLLVM_ENABLE_PROJECTS="clang;lld;compiler-rt" \
@@ -52,6 +52,7 @@ configure() {
         -DLLVM_INCLUDE_BENCHMARKS=OFF \
         -DLLVM_INCLUDE_TESTS=OFF \
         -DLLVM_INSTALL_TOOLCHAIN_ONLY=ON \
+        -DLLVM_OCAML_INSTALL_PATH="${SERENITY_INSTALL_ROOT}/usr/local/ocaml" \
         -DLLVM_PTHREAD_LIB=pthread \
         -DLLVM_TARGETS_TO_BUILD=X86
 }