target/arm: Advertise all page sizes for -cpu max

target/arm: Advertise all page sizes for -cpu max

We support 16k pages, but do not advertize that in ID_AA64MMFR0.

The value 0 in the TGRAN*_2 fields indicates that stage2 lookups defer
to the same support as stage1 lookups.  This setting is deprecated, so
indicate support for all stage2 page sizes directly.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220301215958.157011-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>