kodi: allow using aloop audio devices

Building the linux kernel with snd_aloop enabled adds alsa loopback devices,
however they are not shown in the kodi gui and therefore can't be used by
default. This patch lifts those restrictions.

Signed-off-by: Oliver Schib <oliver.schib@gmx.ch>

package/kodi/patches/patch-xbmc_cores_AudioEngine_Sinks_AESinkALSA_cpp

@@ -0,0 +1,30 @@
+--- xbmc-17.6-Krypton.orig/xbmc/cores/AudioEngine/Sinks/AESinkALSA.cpp	2017-11-14 17:55:01.000000000 +0100
++++ xbmc-17.6-Krypton/xbmc/cores/AudioEngine/Sinks/AESinkALSA.cpp	2018-04-08 18:01:42.270455418 +0200
+@@ -1193,7 +1193,8 @@ void CAESinkALSA::EnumerateDevicesEx(AED
+        * found by the enumeration process. Skip them as well ("hw", "dmix",
+        * "plughw", "dsnoop"). */
+ 
+-      else if (baseName != "default"
++      else if (true)
++/*	       baseName != "default"
+             && baseName != "sysdefault"
+             && baseName != "surround40"
+             && baseName != "surround41"
+@@ -1203,7 +1204,7 @@ void CAESinkALSA::EnumerateDevicesEx(AED
+             && baseName != "hw"
+             && baseName != "dmix"
+             && baseName != "plughw"
+-            && baseName != "dsnoop")
++            && baseName != "dsnoop")*/
+       {
+         EnumerateDevice(list, name, desc ? desc : name, config);
+       }
+@@ -1360,7 +1361,7 @@ void CAESinkALSA::EnumerateDevice(AEDevi
+         info.m_displayName.substr(info.m_displayName.size()-5) == " HDMI")
+     {
+       /* We already know this is HDMI, strip it */
+-      info.m_displayName.erase(info.m_displayName.size()-5);
++      /*info.m_displayName.erase(info.m_displayName.size()-5);*/
+     }
+ 
+     /* "CONEXANT Analog", "USB Audio", "HDMI 0", "ALC889 Digital" ... */