src/fmc_config_130m_4ch.cpp: add more si571 configurations
src/chip/ad9510.cpp: change divider to 10 and fix assertions

We should heave a generic way of changing these values
without recompiling and altering the source code!
src/chip/ad9510.cpp: fix divider comments
src/chip/ad9510.h: add PLL status mask
src/include/data.h: add support for different addressing

We can have WB peripherals that are addressed in BYTE or
WORD granularity
src/include/plat_opts.h: add header to select WB addressing
src/interface/*: change SPI and I2C to use chosen WB granularity
src/reg_map/*: add 2 distinct address map

We have different register maps for two different
test firmwares
src/fmc_config_*: add plat_opts macros
src/Makefile.in: update Makefile.in