.gitignore: generalize *.new

It's not only in xen/include/xen/ that we generate (intermediate) *.new
files.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Acked-by: Julien Grall <jgrall@amazon.com>

.gitignore

@@ -17,6 +17,7 @@
 *.so.[0-9]*
 *.bin
 *.bak
+*.new
 *.tmp
 *.spot
 *.spit
@@ -277,7 +278,6 @@ xen/include/compat/*
 xen/include/config/
 xen/include/generated/
 xen/include/public/public
-xen/include/xen/*.new
 xen/include/xen/acm_policy.h
 xen/include/xen/compile.h
 xen/include/xen/hypercall-defs.h