staging: lustre: fix comparisons should place the constant on the right side

This patch fixes checkpatch.pl warning:

WARNING: Comparisons should place the constant on the right side of the test
Signed-off-by: Aastha Gupta <aastha.gupta4104@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/include/lu_object.h

@@ -1130,7 +1130,7 @@ struct lu_context_key {
 	{							 \
 		type *value;				      \
 								  \
-		BUILD_BUG_ON(PAGE_SIZE < sizeof(*value));        \
+		BUILD_BUG_ON(sizeof(*value) > PAGE_SIZE);        \
 								  \
 		value = kzalloc(sizeof(*value), GFP_NOFS);	\
 		if (!value)				\