This patch fixes the issues found in nameserver_remotenotify
callback function. The following changes are made in this patch.
	- nameservet_get_local function returns the length of
		the name matched on success. Previously it was
		returning NULL.
	- nameserver_remotenotify_cbck function is corrected to
		not prematurely exit if a name is not found in
		the local nameserver table. Correction has also
		been made to send a request status value so
		that the remote core thread is not blocked.
Signed-off-by: Suman Anna <s-anna@ti.com>