Add support for python 3.11

Virtualbox 7.0.0 will only build a lib named VBoxPython3.so, regardless of the
actual python version used when compiling.  Remove VBoxPython3m.so, we don't
use it.

--- a/src/libs/xpcom18a4/python/Makefile.kmk
+++ b/src/libs/xpcom18a4/python/Makefile.kmk
@@ -30,7 +30,7 @@
 
 #
 # List of supported Python versions, defining a number of
-# VBOX_PYTHON[26|27|31|32|32M|33|33M|34|34M|35|35M|36|36M|37|37M|38|38M|39|39M|310|310M|DEF]_[INC|LIB] variables
+# VBOX_PYTHON[26|27|31|32|32M|33|33M|34|34M|35|35M|36|36M|37|37M|38|38M|39|39M|310|310M|311|311M|DEF]_[INC|LIB] variables
 # which get picked up below.
 #
 ifeq ($(KBUILD_TARGET),darwin) # Relatively predictable, don't script.
@@ -665,6 +665,48 @@
    endif
   endif
 
+  ifdef VBOX_PYTHON311_INC
+   #
+   # Python 3.11 version
+   #
+   DLLS += VBoxPython3_11
+   VBoxPython3_11_EXTENDS = VBoxPythonBase
+   VBoxPython3_11_EXTENDS_BY = appending
+   VBoxPython3_11_INCS    = $(VBOX_PYTHON311_INC)
+   VBoxPython3_11_LIBS    = $(VBOX_PYTHON311_LIB)
+
+   ifdef VBOX_WITH_32_ON_64_MAIN_API
+    ifdef VBOX_PYTHON311_LIB_X86
+     DLLS += VBoxPython3_11_x86
+     VBoxPython3_11_x86_EXTENDS = VBoxPythonBase_x86
+     VBoxPython3_11_x86_EXTENDS_BY = appending
+     VBoxPython3_11_x86_INCS  = $(VBOX_PYTHON311_INC)
+     VBoxPython3_11_x86_LIBS  = $(VBOX_PYTHON311_LIB_X86)
+    endif
+   endif
+  endif
+
+  ifdef VBOX_PYTHON311M_INC
+   #
+   # Python 3.11 version with pymalloc
+   #
+   DLLS += VBoxPython3_11m
+   VBoxPython3_11m_EXTENDS = VBoxPythonBase_m
+   VBoxPython3_11m_EXTENDS_BY = appending
+   VBoxPython3_11m_INCS    = $(VBOX_PYTHON311M_INC)
+   VBoxPython3_11m_LIBS    = $(VBOX_PYTHON311M_LIB)
+
+   ifdef VBOX_WITH_32_ON_64_MAIN_API
+    ifdef VBOX_PYTHON311M_LIB_X86
+     DLLS += VBoxPython3_11m_x86
+     VBoxPython3_11m_x86_EXTENDS = VBoxPythonBase_x86_m
+     VBoxPython3_11m_x86_EXTENDS_BY = appending
+     VBoxPython3_11m_x86_INCS  = $(VBOX_PYTHON311M_INC)
+     VBoxPython3_11m_x86_LIBS  = $(VBOX_PYTHON311M_LIB_X86)
+    endif
+   endif
+  endif
+
   ifdef VBOX_PYTHONDEF_INC
    #
    # Python without versioning
@@ -707,18 +749,13 @@
   # TODO: ASSUMING that we don't need a different headers for pymalloc
   #       ('m' builds < 3.8) and CRT malloc.
   #
-  VBOX_PYTHON_LIMITED_API_VER := $(firstword $(foreach ver, 35 36 38 39 310   34 33 \
+  VBOX_PYTHON_LIMITED_API_VER := $(firstword $(foreach ver, 35 36 38 39 310 311   34 33 \
   	,$(if-expr defined(VBOX_PYTHON$(ver)_INC),$(ver),)$(if-expr defined(VBOX_PYTHON$(ver)M_INC),$(ver)M,)))
   ifneq ($(VBOX_PYTHON_LIMITED_API_VER),)
    DLLS += VBoxPython3
    VBoxPython3_EXTENDS   = VBoxPythonBase
    VBoxPython3_DEFS      = $(filter-out VBOX_PYXPCOM_VERSIONED,$(VBoxPythonBase_DEFS)) Py_LIMITED_API=0x03030000
    VBoxPython3_INCS      = $(VBoxPythonBase_INCS) $(VBOX_PYTHON$(VBOX_PYTHON_LIMITED_API_VER)_INC)
-
-   DLLS += VBoxPython3m
-   VBoxPython3m_EXTENDS  = VBoxPythonBase_m
-   VBoxPython3m_DEFS     = $(filter-out VBOX_PYXPCOM_VERSIONED,$(VBoxPythonBase_m_DEFS)) Py_LIMITED_API=0x03030000
-   VBoxPython3m_INCS     = $(VBoxPythonBase_m_INCS) $(VBOX_PYTHON$(VBOX_PYTHON_LIMITED_API_VER)_INC)
   endif
  endif # VBOX_WITH_PYTHON_LIMITED_API