[ARM32] Unicorn switches endianess / clears CPSR.E when updating flags

[kittennbfive]

Hello again,

i think i have found another bug for ARM32 BIG endian.

Unicorn switches to LITTLE endian when executing subs, ie sub with updating the flags (like carry, zero, ...). This should not happen in my opinon.

Please consider the attached testcase.

Real output:

start test1
before: CPSR 0x400003d3 (E: 1 == BIG endian)
after: CPSR 0x400003d3 (E: 1 == BIG endian)
test1 done

----------

start test2
before: CPSR 0x400003d3 (E: 1 == BIG endian)
after: CPSR 0x00000153 (E: 0 == LITTLE endian) <--------
test2 done

A PR will follow. Please run all the CI tests before merging.

Thank you.

testcase.c.txt