[PATCH v3 6/8] targer/arm: Inform helpers whether a PAC instruction is 'combined'

An instruction is a 'combined' Pointer Authentication instruction if it does something in addition to PAC - for instance, branching to or loading an address from the authenticated pointer. Knowing whether a PAC operation is 'combined' is needed to implement the FPACCOMBINE feature for ARMv8.3. Sig

[PATCH v3 6/8] targer/arm: Inform helpers whether a PAC instruction is 'combined'

An instruction is a 'combined' Pointer Authentication instruction if it does something in addition to PAC - for instance, branching to or loading an address from the authenticated pointer. Knowing whether a PAC operation is 'combined' is needed to implement the FPACCOMBINE feature for ARMv8.3. Sig