Combine client and server packages

Now, only one package is generated. This works with older
versions of cmake.

Also, restore change to postinst scripts for Debian and
RPM, undone in a prevous commit.

Change-Id: Ica005656c5f1df0d01d3071584b97de9f0e61cb3
(cherry picked from commit c14d23843228fa146f38c87cb59514e855725b41)

src/DEBIAN_postinst.in

@@ -1,6 +1,6 @@
 #/bin/bash
 
-RDC_LIB_DIR=/opt/rocm/rdc/lib
+RDC_LIB_DIR=@RDC_CLIENT_ROOT_PATH@/rdc/lib
 
 # This will return 0 if an id is created and non-zero if
 # it already exists

src/RPM_rpm_post.in

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-RDC_LIB_DIR=/opt/rocm/rdc/lib
+RDC_LIB_DIR=@RDC_CLIENT_ROOT_PATH@/rdc/lib
 do_create_rdc_user() {
     useradd -r -s /bin/nologin rdc
 }