coresight: Add explicit member initializers to coresight_dev_type

These could potentially become wrong silently if the enum is changed,
so explicitly initialize them.

Signed-off-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20240129154050.569566-10-james.clark@arm.com


Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>