[libcpu/aarch64] add gtimer frq set and stack align (#5642)

* [libcpu/aarch64] add smp support

* [libcpu/aarch64] rt_hw_trap_irq get irq instead of iar when using gicv2

* [libcpu/aarch64] disable irq/fiq when switch thread

* [libcpu/aarch64] add gtimer frq set and stack align

bsp/raspberry-pi/raspi3-64/.config

@@ -711,7 +711,6 @@ CONFIG_RT_LIBC_DEFAULT_TIMEZONE=8
 # CONFIG_PKG_USING_CONTROLLER is not set
 # CONFIG_PKG_USING_PHASE_LOCKED_LOOP is not set
 CONFIG_BCM2836_SOC=y
-CONFIG_BSP_SUPPORT_FPU=y
 
 #
 # Hardware Drivers Config

bsp/raspberry-pi/raspi3-64/driver/Kconfig

@@ -1,8 +1,3 @@
-
-config BSP_SUPPORT_FPU
-    bool "Using Float"
-    default n
-
 menu "Hardware Drivers Config"
     menu "BCM Peripheral Drivers"
         menuconfig BSP_USING_UART

bsp/raspberry-pi/raspi3-64/rtconfig.h

@@ -232,7 +232,6 @@
 /* entertainment: terminal games and other interesting software packages */
 
 #define BCM2836_SOC
-#define BSP_SUPPORT_FPU
 
 /* Hardware Drivers Config */