FROMLIST: reset: qcom-aoss: Allow CONFIG_RESET_QCOM_AOSS to be a tristate

Allow CONFIG_RESET_QCOM_AOSS to be set as as =m to allow for the
driver to be loaded from a modules.

Also replaces the builtin_platform_driver() line with
module_platform_driver() and adds a MODULE_DEVICE_TABLE() entry.

Cc: Todd Kjos <tkjos@google.com>
Cc: Alistair Delva <adelva@google.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Bug: 146449535
Change-Id: I89e20bc1678f206ffdf4aab86aa82bb5d2fc5ced
Link: https://lore.kernel.org/lkml/20200108001913.28485-1-john.stultz@linaro.org/T/#u
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v2: Fix builtin_platform_driver line in driver code
v3: Add MODULE_DEVICE_TABLE() as suggested by Bjorn