aarch64: Add scheduling model for Neoverse V1

[Evandro Menezes via Gcc-patches]

This patch adds the scheduling model for Neoverse V1, based on the information 
from the “Arm Neoverse V1 Software Optimization Guide” and on static and 
dynamic analysis of internal and public benchmarks.  Results are forthcoming. 

-- 
Evandro Menezes

0001-aarch64-Add-scheduling-model-for-Neoverse-V1.patch
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