nss: fix postinst in do_rootfs for target

Partially revert "nss: fix postinst script for nativesdk build"

This reverts commit 31552510b1.

When running in do_rootfs we need to run shlibsign provided
by nss-native, otherwise it fails when /usr/bin/shlibsign
doesn't exist on host builder:

do_rootfs: Postinstall scriptlets of ['nss'] have failed. If the intention is to defer them to first boot,
then please place them into pkg_postinst_ontarget_${PN} ().
Deferring to first boot via 'exit 1' is no longer supported.

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-support/nss/nss_3.56.bb

@@ -238,20 +238,21 @@ do_install_append_class-target() {
 }
 
 PACKAGE_WRITE_DEPS += "nss-native"
+
 pkg_postinst_${PN} () {
-    if [ -n "$D" ]; then
-        for I in $D${libdir}/lib*.chk; do
-            DN=`dirname $I`
-            BN=`basename $I .chk`
-            FN=$DN/$BN.so
-            ${bindir}/shlibsign -i $FN
-            if [ $? -ne 0 ]; then
-                exit 1
-            fi
-        done
-    else
-        ${bindir}/signlibs.sh
-    fi
+    for I in $D${libdir}/lib*.chk; do
+        DN=`dirname $I`
+        BN=`basename $I .chk`
+        FN=$DN/$BN.so
+        shlibsign -i $FN
+        if [ $? -ne 0 ]; then
+            echo "shlibsign -i $FN failed"
+        fi
+    done
+}
+
+pkg_postinst_ontarget_${PN} () {
+    ${bindir}/signlibs.sh
 }
 
 PACKAGES =+ "${PN}-smime"