Add IP5306 and AW9523 register map tables
Add datasheet/community-verified register-map descriptor tables for the
Injoinic IP5306 boost-charger (M5Stack Gray, 13 regs) and the AWINIC
AW9523B I/O expander (CoreS3 SE, 29 regs), feeding the Phase-2
introspection engine (decoded dumps, named-field access, critical write
blocklist). Register both maps on their drivers' begin() success and add
a combined native test suite (validator, floors, anchors, critical
classification, formatRegLine no-truncation fence).
IP5306 0x77 key events are read-to-clear, modeled Access::R with a doc
note; the SYS_CTL1/SYS_CTL2 bit layouts disagree across community maps
and are documented in prose only.
Claude-Session: https://claude.ai/code/session_01Ciw3Ea5Bb2YAcmuZ1dywRY