Cleanup platform console.c

1.Use CONSOLE_UART_BASE to replace UART_BASE, Make it more sense,
2.plat-sunxi console.c delete the unused header file.
driver/sunxi_uart.c: kill compiler wanring

Use <(void)base> to replace <base = base>,
Use the more standardized way to clear the compiler warning
driver/gic.c: per-cpu interrupts re-configuration

Reconfig per-cpu interrupts follow ARM GIC Spec,
ID0-ID7(SGI)   for Non-secure interrupts,
ID8-ID15(SGI)  for Secure interrupts,
ID16-ID31(PPI) for Non-secure interrupts.