Ports: Move SDL_sound to SDL2_sound

Ports/SDL2_sound/patches/0001-Use-pkgconfig-to-find-SDL2.patch

@@ -0,0 +1,25 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: xSlendiX <gamingxslendix@gmail.com>
+Date: Sun, 19 Sep 2021 22:46:10 +0300
+Subject: [PATCH] Use pkgconfig to find SDL2
+
+---
+ CMakeLists.txt | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c1b9241..a659246 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -24,7 +24,10 @@ if(CMAKE_C_COMPILER_ID STREQUAL "SunPro")
+     add_definitions(-xldscope=hidden)
+ endif()
+ 
+-find_package(SDL2 REQUIRED)
++INCLUDE(FindPkgConfig)
++
++PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
++
+ include_directories(${SDL2_INCLUDE_DIRS} ${SDL2_INCLUDE_DIR})
+ if(WIN32)
+     # -lmingw32: gcc adds it automatically.

Ports/SDL2_sound/patches/ReadMe.md

@@ -0,0 +1,7 @@
+# Patches for SDL2_sound on SerenityOS
+
+## `0001-Use-pkgconfig-to-find-SDL2.patch`
+
+Use pkgconfig to find SDL2
+
+