Fix detection of arm64 CPU.
https://github.com/swoole/swoole-src/issues/3917
--- config.m4.orig	2020-11-26 21:02:32.000000000 -0600
+++ config.m4	2020-12-17 01:26:37.000000000 -0600
@@ -612,13 +612,7 @@
     )
 
     if test "$SW_OS" = "MAC"; then
-        if test "$SW_CPU" = "arm"; then
-            SW_CONTEXT_ASM_FILE="arm_aapcs_macho_gas.S"
-        elif test "$SW_CPU" = "arm64"; then
-            SW_CONTEXT_ASM_FILE="arm64_aapcs_macho_gas.S"
-        else
             SW_CONTEXT_ASM_FILE="combined_sysv_macho_gas.S"
-        fi
     elif test "$SW_CPU" = "x86_64"; then
         if test "$SW_OS" = "LINUX"; then
             SW_CONTEXT_ASM_FILE="x86_64_sysv_elf_gas.S"
--- thirdparty/boost/asm/jump_combined_sysv_macho_gas.S.orig	2020-11-26 21:02:33.000000000 -0600
+++ thirdparty/boost/asm/jump_combined_sysv_macho_gas.S	2020-12-17 01:25:22.000000000 -0600
@@ -15,6 +15,10 @@
     #include "jump_ppc32_sysv_macho_gas.S"
 #elif defined(__ppc64__)
     #include "jump_ppc64_sysv_macho_gas.S"
+#elif defined(__arm__)
+    #include "jump_arm_aapcs_macho_gas.S"
+#elif defined(__arm64__)
+    #include "jump_arm64_aapcs_macho_gas.S"
 #else
     #error "No arch's"
 #endif
--- thirdparty/boost/asm/make_combined_sysv_macho_gas.S.orig	2020-11-26 21:02:33.000000000 -0600
+++ thirdparty/boost/asm/make_combined_sysv_macho_gas.S	2020-12-17 01:25:22.000000000 -0600
@@ -15,6 +15,10 @@
     #include "make_ppc32_sysv_macho_gas.S"
 #elif defined(__ppc64__)
     #include "make_ppc64_sysv_macho_gas.S"
+#elif defined(__arm__)
+    #include "make_arm_aapcs_macho_gas.S"
+#elif defined(__arm64__)
+    #include "make_arm64_aapcs_macho_gas.S"
 #else
     #error "No arch's"
 #endif