vc/siemens/hwilib: Use 3rd person singular in comment

Change-Id: I1d9d123d2a29178541ab24c70ba529f6bfa2b6c8
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72010
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/src/vendorcode/siemens/hwilib/hwilib.c b/src/vendorcode/siemens/hwilib/hwilib.c
index 1705a61..b6c8c6b 100644
--- a/src/vendorcode/siemens/hwilib/hwilib.c
+++ b/src/vendorcode/siemens/hwilib/hwilib.c
@@ -402,7 +402,7 @@
 	} while (i < MAX_BLOCK_NUM);
 
 	/* Ensure there is a valid block available for this parameter and
-	 * the length of the parameter do not exceed dstsize or block len.
+	 * the length of the parameter does not exceed dstsize or block len.
 	 */
 	if ((!blk) || (param->pos[i].len > dstsize) ||
 	    (param->pos[i].len + param->pos[i].offset >