security/blst: add soname to the library

soname is necessary to the library is properly provided

security/blst/Makefile

@@ -1,6 +1,7 @@
 PORTNAME=	blst
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.3.14
+PORTREVISION=	1
 CATEGORIES=	security devel
 
 MAINTAINER=	arrowd@FreeBSD.org

security/blst/files/patch-build.sh

@@ -0,0 +1,9 @@
+--- build.sh.orig	2025-03-20 16:46:21 UTC
++++ build.sh
+@@ -124,5 +124,6 @@ if [ $shared ]; then
+     esac
+     (set -x; ${CC} -shared -o $sharedlib \
+                    -Wl,--whole-archive,libblst.a,--no-whole-archive ${CFLAGS} \
++		   -Wl,--soname=${sharedlib} \
+                    -Wl,-Bsymbolic)
+ fi