- fix patching CPU selection in patch_text
- fix potential deadlock in ISS platform serial driver
- fix potential register clobbering in coprocessor exception handler
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Merge tag 'xtensa-20220416' of https://github.com/jcmvbkbc/linux-xtensa
Pull xtensa fixes from Max Filippov:
- fix patching CPU selection in patch_text
- fix potential deadlock in ISS platform serial driver
- fix potential register clobbering in coprocessor exception handler
* tag 'xtensa-20220416' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: fix a7 clobbering in coprocessor context load/store
arch: xtensa: platforms: Fix deadlock in rs_close()
xtensa: patch_text: Fixup last cpu should be master