arch/arm: Enable FPU on qemu and goldfish platforms

Signed-off-by: yangguangcai <yangguangcai@xiaomi.com>

arch/arm/Kconfig

@@ -863,6 +863,7 @@ config ARCH_CORTEXA7
 	select ARCH_HAVE_MMU
 	select ARCH_USE_MMU
 	select ARCH_HAVE_TESTSET
+	select ARCH_HAVE_FPU
 	select ARM_HAVE_MPCORE
 
 config ARCH_CORTEXA8

arch/arm/src/goldfish/goldfish_boot.c

@@ -51,6 +51,8 @@ void arm_boot(void)
 
   goldfish_setupmappings();
 
+  arm_fpuconfig();
+
 #ifdef CONFIG_DEVICE_TREE
   fdt_register((const char *)0x40000000);
 #endif

arch/arm/src/qemu/qemu_boot.c

@@ -51,6 +51,8 @@ void arm_boot(void)
 
   qemu_setupmappings();
 
+  arm_fpuconfig();
+
 #if defined(CONFIG_ARCH_HAVE_PSCI)
   arm_psci_init("hvc");
 #endif