drm/xe/devcoredump: Move exec queue snapshot to Contexts section

drm/xe/devcoredump: Move exec queue snapshot to Contexts section

Having the exec queue snapshot inside a "GuC CT" section was always
wrong.  Commit c28fd6c358db ("drm/xe/devcoredump: Improve section
headings and add tile info") tried to fix that bug, but with that also
broke the mesa tool that parses the devcoredump, hence it was reverted
in commit 70fb86a85dc9 ("drm/xe: Revert some changes that break a mesa
debug tool").

With the mesa tool also fixed, this can propagate as a fix on both
kernel and userspace side to avoid unnecessary headache for a debug
feature.

Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Julia Filipchuk <julia.filipchuk@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: stable@vger.kernel.org
Fixes: 70fb86a85dc9 ("drm/xe: Revert some changes that break a mesa debug tool")
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250123051112.1938193-2-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>