UBUNTU: [Packaging] oracle: enable build and signing nvidia

BugLink: http://bugs.launchpad.net/bugs/1764792

Support for this has been added to the build environment. Now turn
this on for oracle.

Signed-off-by: Stefan Bader <[email protected]>

Author: smb49

debian.oracle/rules.d/amd64.mk

@@ -20,6 +20,7 @@ do_extras_package	= true
 do_tools_common		= false
 do_tools_acpidbg	= true
 do_zfs			= true
+do_dkms_nvidia		= true
 do_libc_dev_package	= false
 disable_d_i		= true
 do_doc_package		= false