[CI] Build llvm-spirv with spirv-dis support (#17225)

This requires SPIR-V Tools to be installed, which we did on all the self
hosted Windows runners and it's in the docker for the Linux ones.

This flag was somewhat recently added, and before that it used SPIR-V
tools automatically if it could find it, so this _might_ also be
returning us to old behavior.

Either way, let's enable it if `--ci-defaults` is passed, some tests
could rely on this in the future.

Signed-off-by: Sarnie, Nick <nick.sarnie@intel.com>

Author: sarnex

buildbot/configure.py

@@ -65,6 +65,7 @@ def do_configure(args):
     sycl_enable_xpti_tracing = "ON"
     xpti_enable_werror = "OFF"
     llvm_enable_zstd = "ON"
+    spirv_enable_dis = "OFF"
 
     if sys.platform != "darwin":
         # For more info on the enablement of level_zero_v2 refer to this document:
@@ -156,6 +157,7 @@ def do_configure(args):
             if libclc_nvidia_target_names not in libclc_targets_to_build:
                 libclc_targets_to_build += libclc_nvidia_target_names
             libclc_gen_remangled_variants = "ON"
+            spirv_enable_dis = "ON"
 
     if args.enable_backends:
         sycl_enabled_backends += args.enable_backends
@@ -193,6 +195,7 @@ def do_configure(args):
         "-DBUILD_SHARED_LIBS={}".format(llvm_build_shared_libs),
         "-DSYCL_ENABLE_XPTI_TRACING={}".format(sycl_enable_xpti_tracing),
         "-DLLVM_ENABLE_LLD={}".format(llvm_enable_lld),
+        "-DLLVM_SPIRV_ENABLE_LIBSPIRV_DIS={}".format(spirv_enable_dis),
         "-DXPTI_ENABLE_WERROR={}".format(xpti_enable_werror),
         "-DSYCL_CLANG_EXTRA_FLAGS={}".format(sycl_clang_extra_flags),
         "-DSYCL_ENABLE_BACKENDS={}".format(";".join(set(sycl_enabled_backends))),