drm/xe/guc_submit: Make suspend_wait interruptible

Rely on wait_event_interruptible_timeout() to put the process to sleep
with TASK_INTERRUPTIBLE. It allows using this function in interruptible
context.

v2: Propagate error on wait_event_interruptible_timeout (Matt Brost)

Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240809155156.1955925-3-francois.dugast@intel.com