Add acpica package (#4047)

* Add acpica package

acpica is a set of tools for working with ACPI power management on both
32-bit and 64-bit Intel systems. It includes the Intel iASL compiler.

Tested on ARM.

* DRY up install step

packages/acpica.rb

@@ -0,0 +1,24 @@
+require 'package'
+
+class Acpica < Package
+  description 'ACPI tools, including Intel ACPI Source Language compiler'
+  homepage 'https://acpica.org/'
+  version '20200326'
+  source_url 'https://acpica.org/sites/acpica/files/acpica-unix2-20200326.tar.gz'
+  source_sha256 '7e0d38d088ff4b2114d08e76201e000091d5a4af40ce7275950759299ba10878'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  def self.build
+    system 'make'
+  end
+
+  def self.install
+    Dir.chdir 'generate/unix/bin' do
+      system "for f in \$(ls | xargs); do install -Dm755 \$f #{CREW_DEST_PREFIX}/bin/\$f; done"
+    end
+  end
+end