DO NOT MERGE Upgrade to clang-r468909b

Test: presubmit
Bug: 241011085
Change-Id: I4320166ae18d7a226f9b57ae4003b7f9d8f4be2e

build/arch/x86.mk

diff --git a/build/arch/x86.mk b/build/arch/x86.mk
index ffaf83e..f629cf7 100644
--- a/build/arch/x86.mk
+++ b/build/arch/x86.mk
@@ -9,7 +9,7 @@
          containing a path to the Android source tree. This is typically \
          provided by initializing the Android build environment.")
 endif
-export X86_TOOLS_PREFIX=$(ANDROID_BUILD_TOP)/prebuilts/clang/host/linux-x86/clang-r468909/bin/
+export X86_TOOLS_PREFIX=$(ANDROID_BUILD_TOP)/prebuilts/clang/host/linux-x86/clang-r468909b/bin/
 
 # x86 Tools ####################################################################