openssl10: Fix mutliple include assumptions for bn.h in opensslconf.h

After adding #pragma once to wrapper header ( opensslconf.h ) this
latent issue got to bite us, where it expect bn.h to be including
openssl.h to define BN_* defines, which is fragile. This patch removes
the contraints for nested includes for bn.h

(From OE-Core rev: f787b0bb9b0626ddbf2ac94cb206c76716a3773d)

(From OE-Core rev: 19d5bffafb17ea0d5e8060716205cab6ab64f302)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/openssl/openssl10/0001-Fix-BN_LLONG-breakage.patch

@@ -0,0 +1,33 @@
+From 247b3188cde5f3347091cd54271127386d3aece0 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 6 Feb 2019 22:10:33 -0800
+Subject: [PATCH] Fix BN_LLONG breakage
+
+opensslconf.h is un-defining BN_LLONG only when included from bn.h which
+is not robust at all, especially when include guards are used and
+multiple inclusions of a given header is not allowed. so lets take out
+the nesting constraint and add OPENSSL_SYS_UEFI constraint instead
+
+Upstream-Status: Inappropriate [ fixed differently with OpenSSL 1.1+ ]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ crypto/opensslconf.h.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/crypto/opensslconf.h.in b/crypto/opensslconf.h.in
+index 7a1c85d..a10c10f 100644
+--- a/crypto/opensslconf.h.in
++++ b/crypto/opensslconf.h.in
+@@ -56,7 +56,7 @@
+ #endif
+ #endif
+ 
+-#if defined(HEADER_BN_H) && !defined(CONFIG_HEADER_BN_H)
++#if !defined(OPENSSL_SYS_UEFI) && !defined(CONFIG_HEADER_BN_H)
+ #define CONFIG_HEADER_BN_H
+ #undef BN_LLONG
+ 
+-- 
+2.20.1
+

meta/recipes-connectivity/openssl/openssl10_1.0.2q.bb

@@ -40,6 +40,7 @@ SRC_URI = "http://www.openssl.org/source/openssl-${PV}.tar.gz \
            file://0001-Fix-build-with-clang-using-external-assembler.patch \
            file://0001-openssl-force-soft-link-to-avoid-rare-race.patch \
            file://0001-allow-manpages-to-be-disabled.patch \
+           file://0001-Fix-BN_LLONG-breakage.patch \
            "
 
 SRC_URI_append_class-target = " \