msm: hsic_sysmon: Support multiple instances

Enhance the driver to support (currently up to 2) multiple sysmon
interface instances. This is done by classifying the supported PIDs
as either the first or second allowable instance. Add PID 9079 and
allow it to be instantiated as the second instance. Also make use
of the new USB_DEVICE_INTERFACE_NUMBER macro.

Change-Id: I6f9fbf37d151dcce1d0bcf5204460ce0732730f1
Signed-off-by: Jack Pham <jackp@codeaurora.org>