8293787: Linux aarch64 build fails after 8292591

Reviewed-by: aph, shade

Author: MBaesken

src/hotspot/os/linux/systemMemoryBarrier_linux.cpp

@@ -37,6 +37,8 @@
   #define SYS_membarrier 324
   #elif defined(PPC64)
   #define SYS_membarrier 365
+  #elif defined(AARCH64)
+  #define SYS_membarrier 283
   #else
   #error define SYS_membarrier for the arch
   #endif