[release/8.0] Pass --target for s390x in toolchain.cmake (#15555)

This is necessary to unbreak the s390x build after the move to the azurelinux-3.0 images: dotnet/runtime#112435

Co-authored-by: Adeel Mujahid <[email protected]>

Author: github-actions[bot]

eng/common/cross/toolchain.cmake

@@ -280,6 +280,8 @@ elseif(TARGET_ARCH_NAME MATCHES "^(arm64|x64)$")
     add_toolchain_linker_flag("-Wl,--rpath-link=${CROSS_ROOTFS}/usr/lib64")
     add_toolchain_linker_flag("-Wl,--rpath-link=${TIZEN_TOOLCHAIN_PATH}")
   endif()
+elseif(TARGET_ARCH_NAME STREQUAL "s390x")
+  add_toolchain_linker_flag("--target=${TOOLCHAIN}")
 elseif(TARGET_ARCH_NAME STREQUAL "x86")
   if(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/i586-alpine-linux-musl)
     add_toolchain_linker_flag("--target=${TOOLCHAIN}")
@@ -327,6 +329,8 @@ if(TARGET_ARCH_NAME MATCHES "^(arm|armel)$")
   if(TARGET_ARCH_NAME STREQUAL "armel")
     add_compile_options(-mfloat-abi=softfp)
   endif()
+elseif(TARGET_ARCH_NAME STREQUAL "s390x")
+  add_compile_options("--target=${TOOLCHAIN}")
 elseif(TARGET_ARCH_NAME STREQUAL "x86")
   if(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/i586-alpine-linux-musl)
     add_compile_options(--target=${TOOLCHAIN})