fix(packaging): assemble compiler-rt's wasm stubs for wasm32

wasi-sdk's sysroot build hands its compiler-rt sub-build
CMAKE_C_COMPILER_TARGET but nothing for the ASM language, so the two
wasm/*.S stubs in the builtins (the setjmp/longjmp and C++ exception
tags) were assembled for x86-64. wasm-ld warned on every wasm link that
the archive members were neither Wasm objects nor bitcode, and anything
that reaches those tags, which crafter-build's -wasm-enable-sjlj does,
would fail to link. wasi-sdk's own toolchain never sees it because its
clang defaults to wasm32-wasip1; the sysroot-only mode against a host
clang does. A one-line patch adds CMAKE_ASM_COMPILER_TARGET to that
sub-build; it belongs upstream.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

packaging/flatpak/net.catcrafts.CrafterBuild.yaml

@@ -154,6 +154,11 @@ modules:
         url: https://github.com/WebAssembly/wasi-sdk.git
         tag: wasi-sdk-34
         disable-submodules: true
+      # The compiler-rt sub-build gets the C target but not the ASM target, so
+      # its two wasm/*.S stubs come out as host objects when the driving clang
+      # does not default to wasm32. Reported upstream; drop once wasi-sdk has it.
+      - type: patch
+        path: wasi-sdk-asm-target.patch
       - type: git
         url: https://github.com/WebAssembly/wasi-libc.git
         commit: 2e6fb9d8ee0cdf9e431fbcabe8af3115de000a13