[PATCH] Fix AIX CI build break.

[Aditya Vidyadhar Kamath <akamath996@gmail.com>]

From: KamathForAIX <Aditya.Kamath1@ibm.com>

In AIX a recent commit caused a build break with the error as shown below.
In file included from python/py-color.h:23,
                 from python/python.c:39:
python/python-internal.h:86:10: fatal error: Python.h: No such file or directory
   86 | #include <Python.h>

In AIX, we run builds with and without python for our internal CI's.

A feature development made by the recent commit https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=6447969d0ac774b6dec0f95a0d3d27c27d158690
missed to guard Python.h in HAVE_PYTHON macro.

This commit is a fix for the same.
---
 gdb/python/python.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gdb/python/python.c b/gdb/python/python.c
index 15bb9129739..f647e6aaf4c 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -36,7 +36,10 @@
 #include "run-on-main-thread.h"
 #include "observable.h"
 #include "build-id.h"
+
+#ifdef HAVE_PYTHON
 #include "py-color.h"
+#endif /* HAVE_PYTHON */
 
 #if GDB_SELF_TEST
 #include "gdbsupport/selftest.h"
-- 
2.41.0