$NetBSD$

Add support for aarch64eb.

--- build/moz.configure/init.configure.orig	2020-12-22 03:42:29.000000000 -0800
+++ build/moz.configure/init.configure	2021-04-29 23:53:40.735556692 -0700
@@ -630,7 +630,7 @@
         endianness = 'little' if 'el' in cpu else 'big'
     elif cpu.startswith('aarch64'):
         canonical_cpu = 'aarch64'
-        endianness = 'little'
+        endianness = 'big' if 'be' in cpu else 'little'
     elif cpu == 'sh4':
         canonical_cpu = 'sh4'
         endianness = 'little'