drm/i915/gt: Update engine_init_common documentation

Change the function doc to reflect updated name.

v2: un-kerneldoc the comment(Matt).
    :s/engines_init_common/engine_init_common(Andi)

Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230310101024.4700-1-nirmoy.das@intel.com

drivers/gpu/drm/i915/gt/intel_engine_cs.c

@@ -1428,8 +1428,8 @@ create_kernel_context(struct intel_engine_cs *engine)
 						  &kernel, "kernel_context");
 }
 
-/**
- * intel_engines_init_common - initialize cengine state which might require hw access
+/*
+ * engine_init_common - initialize engine state which might require hw access
  * @engine: Engine to initialize.
  *
  * Initializes @engine@ structure members shared between legacy and execlists