Various fixes for Aarch64/ARM32/Thumb2 ASM

[SparkiDev]

Description

cpuid.c: hwcaps not used.
thumb2-: ldm -> LDM
sp_arm32.c: No register assignment, fix sp_from_bin
sp_armthumb.c: fix spfrom_bin
sp_cotexm.c: fix line lengths, fix sp_from_bin

Testing

Regression tested ARM assembly builds.

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[SparkiDev]

retest this please

[Copilot]

Pull Request Overview

This PR fixes several issues in the assembly routines and related helper routines for Aarch64/ARM32/Thumb2 targets. The changes include corrections to register/digit assignments in the sp_*_from_bin functions, stylistic updates to assembly instructions (changing “ldm” to “LDM”), and a minor unused-variable warning fix in cpuid.c.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
wolfcrypt/src/sp_armthumb.c	Adjusts register assignment indexing in sp_*_from_bin functions
wolfcrypt/src/port/arm/thumb2-poly1305-asm_c.c	Updates assembly instruction syntax to use uppercase “LDM”
wolfcrypt/src/port/arm/thumb2-mlkem-asm_c.c	Updates assembly instruction syntax to use uppercase “LDM”
wolfcrypt/src/port/arm/thumb2-chacha-asm_c.c	Updates assembly instruction syntax to use uppercase “LDM”
wolfcrypt/src/port/arm/thumb2-aes-asm_c.c	Updates assembly instruction syntax to use uppercase “LDM”
wolfcrypt/src/cpuid.c	Suppresses unused variable warning for hwcaps with (void)hwcaps

Comments suppressed due to low confidence (1)

wolfcrypt/src/sp_armthumb.c:114

• The new indexing expression d[i-0] is equivalent to d[i], which reverses the assignment order compared to the original hard-coded index d[0]. For example, if i equals 2 then case 2 now assigns to d[0] instead of d[2]. Please verify that this reordering is intentional.

case 0: d[i-0] = a[0]; //fallthrough