target-arm/translate.c: Fix slightly misleading comment in Thumb decoder Clarify some slightly misleading comments in the Thumb decoder's handling of the memory hint space -- in particular one code path marked as 'UNPREDICTABLE or unallocated hint' also includes some legitimate preload instructions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>