[release/7.0-rc1][mini] double quote linker path in defined(LD_NAME) case (#74453)

* [mini] double quote linker path in defined(LD_NAME) case

In
e71a958
we started setting a default `LD_NAME` for x86 non-mach targets

Fixes Android x86 builds that specify a `tool_prefix` with spaces in it

* also add an "llvm_only" branch to the defined(LD_NAME) case

Author: lambdageek

src/mono/mono/mini/aot-compiler.c

@@ -12737,7 +12737,12 @@ compile_asm (MonoAotCompile *acfg)
 	if (ld_binary_name == NULL) {
 		ld_binary_name = LD_NAME;
 	}
-	g_string_append_printf (str, "%s%s %s", tool_prefix, ld_binary_name, LD_OPTIONS);
+	if (acfg->aot_opts.tool_prefix)
+		g_string_append_printf (str, "\"%s%s\" %s", tool_prefix, ld_binary_name, LD_OPTIONS);
+	else if (acfg->aot_opts.llvm_only)
+		g_string_append_printf (str, "%s", acfg->aot_opts.clangxx);
+	else
+		g_string_append_printf (str, "\"%s%s\" %s", tool_prefix, ld_binary_name, LD_OPTIONS);
 #else
 	if (ld_binary_name == NULL) {
 		ld_binary_name = "ld";