Add more registers and flags to ar71x_regs.h for QCA955x and QCA956x
SoCs. Values come from Qualcomm Atheros u-boot code.
Patches can be merged into
622-MIPS-ath79-add-more-register-defines-for-QCA956x-SoC.patch
Signed-off-by: Julien Dusser <julien.dusser@free.fr>