[Preprocessor][test] Fix __VERSION__ in init-aarch64.c

// AARCH64-NEXT: #define __UINT_LEAST8_MAX__ 255

// AARCH64-NEXT: #define __UINT_LEAST8_TYPE__ unsigned char

// AARCH64-NEXT: #define __USER_LABEL_PREFIX__ 

// AARCH64-NEXT: #define __VERSION__ "Clang 11.0.0 "

// AARCH64-NEXT: #define __VERSION__ "{{.*}}"

// AARCH64-NEXT: #define __WCHAR_MAX__ 4294967295U

// AARCH64-NEXT: #define __WCHAR_TYPE__ unsigned int

// AARCH64-NEXT: #define __WCHAR_UNSIGNED__ 1