init/Kconfig: Only block on RANDSTRUCT for RUST

When enabling Rust in the kernel, we only need to block on the
RANDSTRUCT feature and GCC plugin. The rest of the GCC plugins
are reasonably safe to enable.

Signed-off-by: Neal Gompa <neal@gompa.dev>

Author: Conan-Kudo

init/Kconfig

@@ -1900,8 +1900,8 @@ config RUST
 	depends on RUST_IS_AVAILABLE
 	depends on !CFI_CLANG
 	depends on !MODVERSIONS
-	depends on !GCC_PLUGINS
-	depends on !RANDSTRUCT
+	depends on !GCC_PLUGIN_RANDSTRUCT
+	depends on RANDSTRUCT_NONE
 	depends on !SHADOW_CALL_STACK
 	depends on !DEBUG_INFO_BTF || PAHOLE_HAS_LANG_EXCLUDE
 	help