sw:vec_iree: Update iree-import-tflite tool location

The tool is installed with other host compiler binaries.

Change-Id: I8727b18d658e9a7ab18f8b6498851b03f0da9dd2

cmake/springbok_bytecode_module.cmake

diff --git a/cmake/springbok_bytecode_module.cmake b/cmake/springbok_bytecode_module.cmake
index 5206397..87ffc12 100644
--- a/cmake/springbok_bytecode_module.cmake
+++ b/cmake/springbok_bytecode_module.cmake
@@ -48,7 +48,7 @@
   set(_MLIR_SRC "${_RULE_SRC}")
   string(FIND "${_RULE_SRC}" ".tflite" _IS_TFLITE REVERSE)
   if(${_IS_TFLITE} GREATER 0)
-    find_program(IREE_IMPORT_TFLITE_TOOL "iree-import-tflite" REQUIRED)
+    iree_get_executable_path(IREE_IMPORT_TFLITE_TOOL "iree-import-tflite")
     set(_MLIR_SRC "${CMAKE_CURRENT_BINARY_DIR}/${_RULE_NAME}.mlir")
     get_filename_component(_SRC_PATH "${_RULE_SRC}" REALPATH)
     set(_ARGS "${_SRC_PATH}")

cmake/springbok_c_module.cmake

diff --git a/cmake/springbok_c_module.cmake b/cmake/springbok_c_module.cmake
index ac61ad0..bb9a53a 100644
--- a/cmake/springbok_c_module.cmake
+++ b/cmake/springbok_c_module.cmake
@@ -44,7 +44,7 @@
   set(_MLIR_SRC "${_RULE_SRC}")
   string(FIND "${_RULE_SRC}" ".tflite" _IS_TFLITE REVERSE)
   if(${_IS_TFLITE} GREATER 0)
-    find_program(IREE_IMPORT_TFLITE_TOOL "iree-import-tflite" REQUIRED)
+    iree_get_executable_path(IREE_IMPORT_TFLITE_TOOL "iree-import-tflite")
     set(_MLIR_SRC "${CMAKE_CURRENT_BINARY_DIR}/${_RULE_NAME}.mlir")
     get_filename_component(_SRC_PATH "${_RULE_SRC}" REALPATH)
     set(_ARGS "${_SRC_PATH}")