hip:Fix post install script syntax error.

SWDEV-308166: /opt/rocm softlink not created when installing
selective hip packages

Change-Id: Id9c70f5f4edc01fdbb1d06563cab1503e94542ea

hipamd/packaging/hip-runtime-nvidia.postinst

@@ -22,6 +22,6 @@
 ROCMDIR=@ROCM_PATH@
 HIPDIR=$ROCMDIR/hip
 
-if [ -d $ROCMDIR] ; then
+if [ -d $ROCMDIR ] ; then
     ln -s -f $ROCMDIR /opt/rocm
 fi