workaround a build issue with new ld (binutils >= 2.36)

The new ld doesn't ignore an unrecorgnized -no-pie option.

Related: https://github.com/ibm-s390-linux/s390-tools/pull/106

s390utils.spec

@@ -66,6 +66,7 @@ find . -name Makefile | xargs sed -i 's/$(INSTALL) -s/$(INSTALL)/g'
 %build
 make \
         CFLAGS="%{build_cflags}" CXXFLAGS="%{build_cflags}" LDFLAGS="%{build_ldflags}" \
+        NO_PIE_LDFLAGS="" \
         BINDIR=/usr/sbin \
         DISTRELEASE=%{release} \
         V=1