[roll] Roll zircon 649d170..ef813ee (8 commits)

ef813ee [drivers] Fix driver note alignment to be C++-compatible
cd8178f [dev][acpi] publish HID and CID in I2C auxdata
36b4d3f [dev][intel-i2c] enable INTEL_SUNRISE_POINT_SERIALIO_I2C4_DID
b252300 [dev][intel-i2c] fix unbind()/error path
178225a [dev] split out intel-i2c driver from intel-serialio driver
1f746c1 [ddk] Add RMWREG* macros
95379ca [drivers] Explicitly align driver note structs to 4 bytes
4a1df10 [scripts] Update default build dir in symbolize.

Change-Id: I346b8c3575674dc91aad78e03952c2430c310421
diff --git a/manifest/garnet b/manifest/garnet
index b694648..6de6083 100644
--- a/manifest/garnet
+++ b/manifest/garnet
@@ -6,6 +6,6 @@
     <import remote="https://fuchsia.googlesource.com/zircon"
             manifest="manifest/zircon"
             name="zircon"
-            revision="649d170d8c4b6a81ccb393c63f631296707534bf"/>
+            revision="ef813eec8d4bb17bd84c931eac9f0b26d0d81dfa"/>
     </imports>
 </manifest>