DEFAULT_MAPPING_TAG is not hashable
Cosmetic change to exception table
Document plat_psci_ops.(system_off|system_reset)
Docs: Clarify IRQ/FIQ handler API in Interrupt Design Guide
readme.md: Add tested Linaro release information for FVPs
firmware-design.md: Fix broken link
Add CFI debug frame information for ASM functions
Clarify dependency for PSCI_EXTENDED_STATE_ID