interconnect: qcom: Set QoS on the first bandwidth request

Move the QoS configuration to happen on the first non-zero bandwidth
request from the consumer driver. This allows configuring QoS also
for consumers like IPA, which can probe asynchronously and their clock
should not be touched until the firmware has completed booting.

Change-Id: I2a8e385d99f3c489d920a7c85e9415d540f6df87
Signed-off-by: Georgi Djakov <gdjako@codeaurora.org>
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>