drm/i915/gt/uc: Fix typo in a comment

Fix typo in a comment.

explaination -> explanation

Signed-off-by: Yuichiro Tsuji <yuichtsu@amazon.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250224085638.3500-2-yuichtsu@amazon.com

Author: Yuichiro Tsuji

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c

@@ -3008,7 +3008,7 @@ static int __guc_context_pin(struct intel_context *ce,
 
 	/*
 	 * GuC context gets pinned in guc_request_alloc. See that function for
-	 * explaination of why.
+	 * explanation of why.
 	 */
 
 	return lrc_pin(ce, engine, vaddr);