rust: Fix build break because of "download-rustc" and "llvm-tools"

>From Rust 1.84, the download-rustc and llvm-tools options were set to True
(previously they were False)

rust-lang/rust@cce6f03
(download-rustc)

rust-lang/rust@38f0c09
(llvm-tools)

For tarball sources, the download-rustc option should be False, so it has been
reverted back to False.

Setting llvm-tools to True caused issues with finding llvm-objcopy, so this
has been changed back to False.

Upstream-Status: rust-lang/rust#134240

Signed-off-by: Deepesh Varatharajan <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
(adapted from oe-core commit 2eb952d839e72c24a4180a57631c77910a0da980)
Signed-off-by: Scott Murray <[email protected]>

Author: DeepeshWR

recipes-devtools/rust/rust_1.83.0.bb

@@ -137,6 +137,8 @@ python do_configure() {
     config.add_section("rust")
     config.set("rust", "rpath", e(True))
     config.set("rust", "remap-debuginfo", e(True))
+    config.set("rust", "download-rustc", e(False))
+    config.set("rust", "llvm-tools", e(False))
     config.set("rust", "channel", e(d.expand("${RUST_CHANNEL}")))
 
     # Whether or not to optimize the compiler and standard library