[roll] Roll fuchsia [kernel][debug][x86] Report raw DR6 value

Reports the raw value of hardware DR6 register, instead of a masked
one. This is intended to validate that none of the exceptions reported
by clearing a one of these bits (RTM and BLD) could be happening.

Original-Bug: 453746441
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1425914
Original-Revision: 328603641cb92b51fd8fcb2fa5c28d58702f2c08
GitOrigin-RevId: d4aed63e09559b5f19750f83d1af573ae5977785
Change-Id: I65834cee812ac69a581eefb903c40db89c302670
diff --git a/stem b/stem
index 26e3476..a27faef 100644
--- a/stem
+++ b/stem
@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="bc01a919084b2ece2210deae7aafd4b6d4b6f66c"/>
+            revision="328603641cb92b51fd8fcb2fa5c28d58702f2c08"/>
   </imports>
   <projects>
     <project name="cobalt"