swig: upgrade 4.2.0 -> 4.2.1

swig: upgrade 4.2.0 -> 4.2.1

0001-Use-proc-self-exe-for-swig-swiglib-on-non-Win32-plat.patch
determinism.patch
refreshed for 4.2.1

Changelog:
============
-Correctly ignore duplicate template instantiation (when the
 duplicate contains typedef'd template parameters).
-Fix segfault shrinking STL containers.
-Fix -Wundef warning about testing the value of __cplusplus when compiling
 SWIG-generated C code.  Warning introduced by a change in SWIG 4.2.0.
-Fix memory leak when getting or setting a PHP attribute which wraps a C++
 member variable.
-Fix for wrapping STL containers that are static member variables or global
 variables (most scripting languages).

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>