From: James Morse <james.morse@arm.com>

When CPUs come online the MSC's original configuration should be restored.

Add struct mpam_config to hold the configuration. For each component, this
has a bitmap of features that have been changed from the reset values. The
mpam_config is also used on RIS reset where all bits are set to ensure all
features are reset.

Once the maximum partid is known, allocate a configuration array for each
component, and reprogram each RIS configuration from this.

CC: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Cc: Shaopeng Tan (Fujitsu) tan.shaopeng@fujitsu.com
Cc: Peter Newman peternewman@google.com
Reviewed-by: Gavin Shan <redacted>
Tested-by: Carl Worth <redacted>
Tested-by: Gavin Shan <redacted>
Tested-by: Zeng Heng <redacted>
Tested-by: Shaopeng Tan <redacted>
Signed-off-by: Ben Horgan <ben.horgan@arm.com>
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Reviewed-by: Shaopeng Tan <redacted>