core: arm32: replace _start with reset() function
core: arm32: replace _start with reset() function

Renames _start to reset_vect_table and renames reset() to _start() in
order to avoid pulling in too much unpaged code via
reset_secondary()/cpu_on_handler().

Reviewed-by: Jerome Forissier <ced78d268b4c9a0a20a59a9feeebd2ad90da03d3@linaro.org>
Signed-off-by: Jens Wiklander <7706914404370d7502c27a0eff493dcf491feb51@linaro.org>

pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os,pascal-brand-st-dev/optee_os