target/arm: Define FIELDs for ID_DFR0

This is immediately necessary for the PMUv3 implementation to check
ID_DFR0.PerfMon to enable/disable specific features, but defines the
full complement of fields for possible future use elsewhere.

Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20181211151945.29137-8-aaron@os.amperecomputing.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
1 file changed