libnspr: fix nios2 and microblaze support patches

libnspr: fix nios2 and microblaze support patches

Commit c9e3d5b6c57 (libnspr: bump to version 4.20) did not refresh the
hunks touching the _linux.cfg file. As a result, these hunk were applied
to the wrong (x86 specific) place in that file, rendering them
ineffective. Refresh the patches to fix that.

Fixes:
http://autobuild.buildroot.net/results/2d1/2d1288e98a6459d84c2599c99b5617a2fde81f62/

Cc: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>