upgrade vendored libmpg123 to 1.33.2

Author: sezero

.gitmodules

@@ -25,7 +25,7 @@
 [submodule "external/mpg123"]
 	path = external/mpg123
 	url = https://github.com/libsdl-org/mpg123.git
-	branch = v1.31.3-SDL
+	branch = v1.33.2-SDL
 [submodule "external/libxmp"]
 	path = external/libxmp
 	url = https://github.com/libsdl-org/libxmp.git

Android.mk

@@ -130,7 +130,7 @@ endif
 
 # This needs to be a shared library to comply with the LGPL license
 ifeq ($(SUPPORT_MP3_MPG123),true)
-    LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(MPG123_LIBRARY_PATH)/android
+    LOCAL_C_INCLUDES += $(LOCAL_PATH)/$(MPG123_LIBRARY_PATH)/src/include
     LOCAL_CFLAGS += -DDECODER_MP3_MPG123
     LOCAL_SHARED_LIBRARIES += mpg123
 endif