openssl: move engine.mk to INCLUDE_DIR

engine.mk is supposed to be included by engine packages, but it will not
be present in the SDK in the same place as in the main repository.

Move it to include/openssl-engine.mk to avoid this.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

include/openssl-engine.mk

@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2022 Enéas Ulir de Queiroz
+
 ENGINES_DIR=engines-1.1
 
 define Package/openssl/engine/Default

package/libs/openssl/Makefile

@@ -11,7 +11,7 @@ PKG_NAME:=openssl
 PKG_BASE:=1.1.1
 PKG_BUGFIX:=n
 PKG_VERSION:=$(PKG_BASE)$(PKG_BUGFIX)
-PKG_RELEASE:=1
+PKG_RELEASE:=$(AUTORELEASE)
 PKG_USE_MIPS16:=0
 
 PKG_BUILD_PARALLEL:=1
@@ -64,7 +64,7 @@ PKG_CONFIG_DEPENDS:= \
 	CONFIG_OPENSSL_WITH_WHIRLPOOL
 
 include $(INCLUDE_DIR)/package.mk
-include engine.mk
+include $(INCLUDE_DIR)/openssl-engine.mk
 
 ifneq ($(CONFIG_CCACHE),)
 HOSTCC=$(HOSTCC_NOCACHE)