nginx: generate certificate on reload

The nginx service would generate a self-certificate upon restart (if
there's not already an existing certificate), but not upon reload.
Enable this for reload as well : the phosphor certificate management app
requires services that want to generate self-signed certificates to do
it upon reload (if reload is supported).

Change-Id: If709589ff3d727c6dd149029570991aea66d4b15
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
1 file changed