devtool: ide_sdk: Use bitbake's python3 for generated scripts

The generated scripts use the sys.path configuration found inside
bitbake. It can be a different python version than the one used on the
host through the IDE.

For instance, when running the generated script
deploy_target_cmake-example-core2-64 from an eSDK generated on another
machine, I got the following exception:
    AssertionError: SRE module mismatch

We need to match the sys.executable to the sys.path.

(From OE-Core rev: 45704319661570b45ef69fddd6b4b4fa22ca80d1)

Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/devtool/ide_sdk.py

@@ -750,7 +750,7 @@ class RecipeModified:
         does not need to start a bitbake server. All information from tinfoil
         is hard-coded in the generated script.
         """
-        cmd_lines = ['#!/usr/bin/env python3']
+        cmd_lines = ['#!%s' % str(sys.executable)]
         cmd_lines.append('import sys')
         cmd_lines.append('devtool_sys_path = %s' % str(sys.path))
         cmd_lines.append('devtool_sys_path.reverse()')