rust: Upgrade 1.85.0->1.85.1

Rust stable version updated to 1.85.1
https://blog.rust-lang.org/2025/03/18/Rust-1.85.1.html

Dropped patches:
downgrade-bootstrap-cc.patch since it's merged with v1.85.1.

(From OE-Core rev: b141115b9c8e052df096e55d92972b1db4c84f4e)

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/conf/distro/include/tcmode-default.inc

@@ -12,7 +12,7 @@ PREFERRED_PROVIDER_virtual/gettext ??= "gettext"
 GCCVERSION ?= "14.%"
 SDKGCCVERSION ?= "${GCCVERSION}"
 GLIBCVERSION ?= "2.41%"
-RUSTVERSION ?= "1.85.0%"
+RUSTVERSION ?= "1.85.1%"
 
 PREFERRED_VERSION_gcc ?= "${GCCVERSION}"
 PREFERRED_VERSION_gcc-cross-${TARGET_ARCH} ?= "${GCCVERSION}"

meta/recipes-devtools/rust/files/downgrade-bootstrap-cc.patch

@@ -1,41 +0,0 @@
-Downgrade bootstrap cc version
-
-In rust v1.85.0, the upgraded cc version causes bootstrap
-to fail on custom targets. Downgrading the cc version fixes
-the error. This commit is merged with v1.85.1 and the patch
-can be dropped when upgraded to it.
-
-Upstream-Status: Backport [https://github.com/rust-lang/rust/pull/137460/commits/e4ca11f87ffca8c63aa56d45b46e62b6acc58bd7]
-
-Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
-diff --git a/src/bootstrap/Cargo.lock b/src/bootstrap/Cargo.lock
-index a47f3af60cb..890e64e2bab 100644
---- a/src/bootstrap/Cargo.lock
-+++ b/src/bootstrap/Cargo.lock
-@@ -88,9 +88,9 @@ dependencies = [
-
- [[package]]
- name = "cc"
--version = "1.2.0"
-+version = "1.1.22"
- source = "registry+https://github.com/rust-lang/crates.io-index"
--checksum = "1aeb932158bd710538c73702db6945cb68a8fb08c519e6e12706b94263b36db8"
-+checksum = "9540e661f81799159abee814118cc139a2004b3a3aa3ea37724a1b66530b90e0"
- dependencies = [
-  "shlex",
- ]
-diff --git a/src/bootstrap/Cargo.toml b/src/bootstrap/Cargo.toml
-index ed51862390d..2c1d85b01e6 100644
---- a/src/bootstrap/Cargo.toml
-+++ b/src/bootstrap/Cargo.toml
-@@ -37,7 +37,9 @@ test = false
- # Most of the time updating these dependencies requires modifications to the
- # bootstrap codebase(e.g., https://github.com/rust-lang/rust/issues/124565);
- # otherwise, some targets will fail. That's why these dependencies are explicitly pinned.
--cc = "=1.2.0"
-+#
-+# Do not upgrade this crate unless https://github.com/rust-lang/cc-rs/issues/1317 is fixed.
-+cc = "=1.1.22"
- cmake = "=0.1.48"
-
- build_helper = { path = "../build_helper" }

meta/recipes-devtools/rust/rust-source.inc

@@ -8,9 +8,8 @@ SRC_URI += "https://static.rust-lang.org/dist/rustc-${RUST_VERSION}-src.tar.xz;n
             file://0001-src-core-build_steps-tool.rs-switch-off-lto-for-rust.patch;patchdir=${RUSTSRC} \
             file://revert-link-std-statically-in-rustc_driver-feature.patch;patchdir=${RUSTSRC} \
             file://Zdual-proc-macros-additional-check.patch;patchdir=${RUSTSRC} \
-            file://downgrade-bootstrap-cc.patch;patchdir=${RUSTSRC} \
 "
-SRC_URI[rust.sha256sum] = "d542c397217b5ba5bac7eb274f5ca62d031f61842c3ba4cc5328c709c38ea1e7"
+SRC_URI[rust.sha256sum] = "b1fbf809efe9f036939401e142631c201a53bcf43ec1696bd9f5290ba236a266"
 
 RUSTSRC = "${WORKDIR}/rustc-${RUST_VERSION}-src"