use openssl instead of libressl

package/u-boot/Makefile

@@ -9,7 +9,7 @@ PKG_RELEASE:=		1
 PKG_HASH:=		f591da9ab90ef3d6b3d173766d0ddff90c4ed7330680897486117df390d83c8f
 PKG_DESCR:=		portable bootloader
 PKG_SECTION:=		base/boot
-HOST_BUILDDEP:=		libressl-host dtc-host swig-host python3-host python-setuptools-host
+HOST_BUILDDEP:=		openssl-host dtc-host swig-host python3-host python-setuptools-host
 PKG_BUILDDEP:=		python3-host python-setuptools-host swig-host u-boot-host
 PKG_URL:=		http://www.denx.de/wiki/U-Boot	
 PKG_SITES:=		ftp://ftp.denx.de/pub/u-boot/