build: Pin IREE to 12052024 revision

Context: due to a long-standing bug on IREE importer/compiler (https://github.com/iree-org/iree/issues/19402) and a latest change
on IREE compiler/runtime
(https://github.com/iree-org/iree/commit/487c5217e4b7a931eb288b35b11c043c7567a7e3), we have to pin IREE to a 12/05/2024 revision to
avoid breakage.

This change pins IREE compiler to a 12/05/2024 revision.

Change-Id: Ic39a8cb91db58abb36d909b5539f9bd412a4df2c

platforms/nexus/iree.mk

diff --git a/platforms/nexus/iree.mk b/platforms/nexus/iree.mk
index dccbaf7..9d1366a 100644
--- a/platforms/nexus/iree.mk
+++ b/platforms/nexus/iree.mk
@@ -70,7 +70,7 @@
 # out/host/iree_compiler.
 #
 iree_compiler: | $(IREE_COMPILER_DIR)
-	$(ROOTDIR)/scripts/download_iree_compiler.py --iree_compiler_dir "$(IREE_COMPILER_DIR)" --tag_name candidate-20240909.1011
+	$(ROOTDIR)/scripts/download_iree_compiler.py --iree_compiler_dir "$(IREE_COMPILER_DIR)" --tag_name iree-3.1.0rc20241205
 iree_commit_check:
 	$(ROOTDIR)/scripts/check-iree-commit.sh "$(IREE_SRC)" "$(IREE_COMPILER_DIR)"
 

platforms/shodan/iree.mk

diff --git a/platforms/shodan/iree.mk b/platforms/shodan/iree.mk
index f21d3ca..c2cbc28 100644
--- a/platforms/shodan/iree.mk
+++ b/platforms/shodan/iree.mk
@@ -70,7 +70,7 @@
 # out/host/iree_compiler.
 #
 iree_compiler: | $(IREE_COMPILER_DIR)
-	$(ROOTDIR)/scripts/download_iree_compiler.py --iree_compiler_dir "$(IREE_COMPILER_DIR)" --tag_name candidate-20240909.1011
+	$(ROOTDIR)/scripts/download_iree_compiler.py --iree_compiler_dir "$(IREE_COMPILER_DIR)" --tag_name iree-3.1.0rc20241205
 iree_commit_check:
 	$(ROOTDIR)/scripts/check-iree-commit.sh "$(IREE_SRC)" "$(IREE_COMPILER_DIR)"