Register 0x818 is documented as 'undefined', and register
0x82c is not documented. Refuse their access.
Acked-by: NHelge Deller <deller@gmx.de>
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200218063355.18577-5-f4bug@amsat.org>
Signed-off-by: NRichard Henderson <richard.henderson@linaro.org>