binutils: make read_cie aware of new augmentation char 'G'

This allows objdump/readelf to dump DWARF/EH Frame info when the stack
frame makes use of MTE tagging.

ChangeLog:

        * binutils/dwarf.c (is_aarch64_augmentation): Add handling for augmentation
	char 'G'.

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[No change in V3]
1 file changed