Update jemalloc from 5.0.1 to 5.2.1 (#3626)

Tested on ARM.

packages/jemalloc.rb

@@ -3,21 +3,13 @@ require 'package'
 class Jemalloc < Package
   description 'jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support.'
   homepage 'http://jemalloc.net/'
-  version '5.0.1-1'
-  source_url 'https://github.com/jemalloc/jemalloc/releases/download/5.0.1/jemalloc-5.0.1.tar.bz2'
-  source_sha256 '4814781d395b0ef093b21a08e8e6e0bd3dab8762f9935bbfb71679b0dea7c3e9'
+  version '5.2.1'
+  source_url 'https://github.com/jemalloc/jemalloc/releases/download/5.2.1/jemalloc-5.2.1.tar.bz2'
+  source_sha256 '34330e5ce276099e2e8950d9335db5a875689a4c6a56751ef3b1d8c537f887f6'
 
   binary_url ({
-    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/jemalloc-5.0.1-1-chromeos-armv7l.tar.xz',
-     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/jemalloc-5.0.1-1-chromeos-armv7l.tar.xz',
-       i686: 'https://dl.bintray.com/chromebrew/chromebrew/jemalloc-5.0.1-1-chromeos-i686.tar.xz',
-     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/jemalloc-5.0.1-1-chromeos-x86_64.tar.xz',
   })
   binary_sha256 ({
-    aarch64: '0f822a3ede3cbe6fac8d736650c0ae52ceec9e69e64746f6af51feb040baa615',
-     armv7l: '0f822a3ede3cbe6fac8d736650c0ae52ceec9e69e64746f6af51feb040baa615',
-       i686: '9bb85bc541cd1582955328e87a6e1dce7a1e9baf486768911efe041f0d6d6683',
-     x86_64: 'c2d0a38655d5af85c08dfc2ef96881b42acb328e0a0b4d72a8c1cbfa82d61f7f',
   })
 
   depends_on 'libxslt'