arch: use up_current_regs/up_set_current_regs replace CURRENT_REGS

[hujun260]

Summary

reason:
1 On different architectures, we can utilize more optimized strategies
to implement up_current_regs/up_set_current_regs.
eg. use interrupt registers or percpu registers.

code size
before
text data bss dec hex filename
262848 49985 63893 376726 5bf96 nuttx

after
text data bss dec hex filename
262844 49985 63893 376722 5bf92 nuttx

size change -4

Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic
-machine virt,virtualization=on,gic-version=3
-net none -chardev stdio,id=con,mux=on -serial chardev:con
-mon chardev=con,mode=readline -kernel ./nuttx

Impact

none

Testing

ostest

[GUIDINGLI]

Most of are replacement, LGTM

[tmedicci]

Hi @hujun260 ,

This PR broke esp32s3-devkit:stack: the device halts during bring-up. Can you take a look, please?

It seems that @anjiahao1 made some changes for this same feature in #13457, but I don't know if it was supposed to fix something broke by this PR.

[hujun260]

My patch has nothing to do with @anjiahao1's patch.
Thank you for your feedback, but I'm not sure how to reproduce the issue you've reported.
I've reviewed the code again and found that the changes specific to xtensa (esp32s3-devkit:stack) are quite limited,
focusing mainly on the following files, which are mostly simple replacements.
It doesn't seem these changes would cause any issues. Could you please try debugging by rolling back the changes step by step on your own?
I think this debugging is simple.

arch/xtensa/include/irq.h
arch/xtensa/src/common/xtensa.h
arch/xtensa/src/common/xtensa_assert.c
arch/xtensa/src/common/xtensa_backtrace.c
arch/xtensa/src/common/xtensa_cpupause.c
arch/xtensa/src/common/xtensa_initialize.c
arch/xtensa/src/common/xtensa_irqdispatch.c
arch/xtensa/src/common/xtensa_registerdump.c
arch/xtensa/src/common/xtensa_schedsigaction.c