Re: [4.7] Avoid global state in mep_handle_option

> Tested building cc1 and xgcc for cross to mep-elf. Will commit to > trunk for 4.7 in the absence of target maintainer objections. No objections from me.

[4.7] Avoid global state in mep_handle_option

This patch, for 4.7 and relative to a tree with applied, stops the MEP handle_option hook from using global state. The variable option_mtiny_specified is replaced by the automatic setting of x_mep_tiny_cutoff in the opts_set structure. Set