libressl: Update the disabled package and add note

disabled-packages/libressl/build.sh

@@ -1,8 +1,12 @@
+# Status: Termux currently uses openssl. Transitioning to libressl
+#         is tempting, but on hold for now to see how widespread
+#         the adoption of libressl in Linux distributions is.
 TERMUX_PKG_HOMEPAGE=http://www.libressl.org/
 TERMUX_PKG_DESCRIPTION="Library implementing the TLS protocol as well as general purpose cryptography functions"
 TERMUX_PKG_DEPENDS="ca-certificates"
-TERMUX_PKG_VERSION=2.5.0
+TERMUX_PKG_VERSION=2.5.1
 TERMUX_PKG_SRCURL=http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=f71ae0a824b78fb1a47ffa23c9c26e9d96c5c9b29234eacedce6b4c7740287cd
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--with-openssldir=$TERMUX_PREFIX/etc/tls"
 TERMUX_PKG_CONFLICTS="openssl"
 # etc/tls/cert.pem is provided by ca-certificates: