Build: Remove encoding width suffix from Arm bignum assembly

Older armclang compilers (6.13, 6.14, ...) fails to compile mbedtls,
with DSP enabled.
For more info about this patch, check:
https://github.com/Mbed-TLS/mbedtls/pull/6090/commits/907a367b5035ab120095c325b48fdf90b04a5081

Signed-off-by: Dávid Házi <david.hazi@arm.com>
Change-Id: I433014867e6239a7a1493a44f41a39a9089d25cc
diff --git a/lib/ext/mbedcrypto/0005-Add-LMS-implementation.patch b/lib/ext/mbedcrypto/0005-Add-LMS-implementation.patch
index acd7f6d..0ce185f 100644
--- a/lib/ext/mbedcrypto/0005-Add-LMS-implementation.patch
+++ b/lib/ext/mbedcrypto/0005-Add-LMS-implementation.patch
@@ -1,7 +1,7 @@
 From 37bad45c56543a289be7854a8723d9b29c0b8cb2 Mon Sep 17 00:00:00 2001
 From: Raef Coles <raef.coles@arm.com>
 Date: Wed, 21 Jul 2021 12:42:15 +0100
-Subject: [PATCH 5/5] Add LMS implementation
+Subject: [PATCH 5/6] Add LMS implementation
 
 Also an LM-OTS implementation as one is required for LMS.