manifest: Sync minimal GCC AS toolchain from aosp

Change-Id: I160489d16382b3b747be904cd8f02c915e20da65
diff --git a/omni-aosp.xml b/omni-aosp.xml
index 122ce92..aca2746 100644
--- a/omni-aosp.xml
+++ b/omni-aosp.xml
@@ -106,4 +106,5 @@
 
   <project path="prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9" name="platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9" groups="pdk,linux,arm" clone-depth="1" revision="a9b70fc1b59747d1334677e539b2ef4c752a59a1" />
   <project path="prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.17-4.8" name="platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.17-4.8" groups="pdk,linux" clone-depth="1" revision="639243dd5cb2c5ea1313f033c75c8c533813a484"/>
+  <project path="prebuilts/gas/linux-x86" name="platform/prebuilts/gas/linux-x86" groups="pdk,linux,x86" clone-depth="1" remote="aosp" revision="592150fc8ae9f48f2e73f390961f32ca6f5f6a9f" />
 </manifest>