Increase Clear repo default timeout

Since the default Clear repo mirror changed to the cdn, dnf timeouts
occur more frequently. Increasing the timeout to 45 seconds from the
default timeout of 30 seconds.

Signed-off-by: John Akre <john.w.akre@intel.com>

bat/lib/mixerlib.bash

@@ -143,6 +143,7 @@ failovermethod=priority
 baseurl=https://cdn.download.clearlinux.org/releases/\$releasever/clear/x86_64/os/
 enabled=1
 gpgcheck=0
+timeout=45
 EOF
 }
 

builder/repo_control.go

@@ -69,6 +69,7 @@ failovermethod=priority
 baseurl={{.UpstreamURL}}/releases/$releasever/clear/x86_64/os/
 enabled=1
 gpgcheck=0
+timeout=45
 {{end}}{{if .Local}}
 [local]
 name=Local