sw:vec_iree: Fix tosa MLIR format

Generate the correct format based on https://github.com/iree-org/iree/pull/10375

Fix: 246588795
Change-Id: I1a06d40ac15e892219eab8cc8bda8184c5a6dc63

cmake/springbok_static_module.cmake

diff --git a/cmake/springbok_static_module.cmake b/cmake/springbok_static_module.cmake
index 873c518..b923ad4 100644
--- a/cmake/springbok_static_module.cmake
+++ b/cmake/springbok_static_module.cmake
@@ -50,6 +50,7 @@
     set(_MLIR_SRC "${CMAKE_CURRENT_BINARY_DIR}/${_RULE_NAME}.mlir")
     get_filename_component(_SRC_PATH "${_RULE_SRC}" REALPATH)
     set(_ARGS "${_SRC_PATH}")
+    list(APPEND _ARGS "--output-format=mlir-ir")
     list(APPEND _ARGS "-o")
     list(APPEND _ARGS "${_RULE_NAME}.mlir")
     # Only add the custom_command here. The output is passed to

cmake/springbok_vmvx_module.cmake

diff --git a/cmake/springbok_vmvx_module.cmake b/cmake/springbok_vmvx_module.cmake
index 72e8bde..1a7a524 100644
--- a/cmake/springbok_vmvx_module.cmake
+++ b/cmake/springbok_vmvx_module.cmake
@@ -47,6 +47,7 @@
     set(_MLIR_SRC "${CMAKE_CURRENT_BINARY_DIR}/${_RULE_NAME}.mlir")
     get_filename_component(_SRC_PATH "${_RULE_SRC}" REALPATH)
     set(_ARGS "${_SRC_PATH}")
+    list(APPEND _ARGS "--output-format=mlir-ir")
     list(APPEND _ARGS "-o")
     list(APPEND _ARGS "${_RULE_NAME}.mlir")
     # Only add the custom_command here. The output is passed to