fixed compilation of syscall_memfd_secret for SLES

Author: lslusarczyk

src/provider/provider_os_memory_linux.c

@@ -80,7 +80,8 @@ static int syscall_memfd_secret(void) {
     int fd = -1;
 #ifdef __NR_memfd_secret
     // SYS_memfd_secret is supported since Linux 5.14
-    fd = syscall(SYS_memfd_secret, 0);
+    // not using SYS_memfd_secret as SLES does not define it
+    fd = syscall(__NR_memfd_secret, 0);
     if (fd == -1) {
         LOG_PERR("memfd_secret() failed");
     }