(PDK-576) fix up some hardcoded paths in augeas components

These paths only work on the agent, but not on the PDK. Adjusted to match
the definitions required.

Author: DavidS

configs/components/augeas.rb

@@ -11,7 +11,7 @@
   pkg.build_requires "libxml2"
 
   # Ensure we're building against our own libraries when present
-  pkg.environment "PKG_CONFIG_PATH", "/opt/puppetlabs/puppet/lib/pkgconfig"
+  pkg.environment "PKG_CONFIG_PATH", "#{settings[:libdir]}/pkgconfig"
 
   if platform.is_aix?
     pkg.build_requires "http://osmirror.delivery.puppetlabs.net/AIX_MIRROR/pkg-config-0.19-6.aix5.2.ppc.rpm"

configs/components/ruby-augeas.rb

@@ -13,7 +13,7 @@
   if platform.is_aix?
     pkg.build_requires "http://osmirror.delivery.puppetlabs.net/AIX_MIRROR/pkg-config-0.19-6.aix5.2.ppc.rpm"
     pkg.environment "CC", "/opt/pl-build-tools/bin/gcc"
-    pkg.environment "RUBY", "/opt/puppetlabs/puppet/bin/ruby"
+    pkg.environment "RUBY", "#{settings[:ruby_bindir]}/ruby"
     pkg.environment "LDFLAGS", " -brtl #{settings[:ldflags]}"
   end
 
@@ -30,7 +30,7 @@
     ruby = "#{settings[:host_ruby]} -r#{settings[:datadir]}/doc/rbconfig.rb"
     pkg.environment "LDFLAGS", settings[:ldflags]
   else
-    ruby = File.join(settings[:bindir], 'ruby')
+    ruby = File.join(settings[:ruby_bindir], 'ruby')
   end
 
   # This is a disturbing workaround needed for s390x based systems, that