x86: Rework rework x86 related code to use new DTS macros

Replace DT_PHYS_RAM_ADDR and DT_RAM_SIZE with DT_REG_ADDR/DT_REG_SIZE
for the DT_CHOSEN(zephyr_sram) node.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
5 files changed