namespace-browser: increasing time we wait for each service to start as the 2 seconds was not sufficient for mounttables occationally anymore.
namespace-browser: increasing time we wait for each service to
start as the 2 seconds was not sufficient for mounttables occationally
anymore.

Change-Id: I0b2559434c331192b4d5427471ef468bb72b3cd8

vanadium/browser,vanadium/browser,vanadium/browser,vanadium/browser