Renaming _StackPop _stack_pop
Renaming _StackPop _stack_pop

Updating nano kernel functions to follow a consistent naming convention.
Part of that process is the removal of camelCase naming conventions for the
preferred_underscore_method.

Change accomplished with the following script:

#!/bin/bash
echo "Searching for ${1} to replace with ${2}"
find . -type f \( -iname \*.c -o -iname \*.h -o -iname \*.s -o -iname \*.kconf \) \
       -not \( -path host/src/genIdt -prune \) \   \
       -not \( -path host/src/gen_tables -prune \) \
       -print | xargs sed -i "s/"${1}"/"${2}"/g"

Signed-off-by: Dan Kalowsky <53619d3d3576bbac1c2d05ecd99970e469cb3398@intel.com>

galak/zephyr,runchip/zephyr-cc3220,zephyriot/zephyr,zephyriot/zephyr,jamesonwilliams/zephyr-kernel,runchip/zephyr-cc3220,holtmann/zephyr,mbolivar/zephyr,bboozzoo/zephyr,sharronliu/zephyr,sharronliu/zephyr,explora26/zephyr,explora26/zephyr,32bitmicro/zephyr,punitvara/zephyr,ldts/zephyr,zephyriot/zephyr,pklazy/zephyr,finikorg/zephyr,rsalveti/zephyr,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,runchip/zephyr-cc3220,runchip/zephyr-cc3200,finikorg/zephyr,punitvara/zephyr,runchip/zephyr-cc3200,32bitmicro/zephyr,aceofall/zephyr-iotos,ldts/zephyr,finikorg/zephyr,aceofall/zephyr-iotos,explora26/zephyr,nashif/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,coldnew/zephyr-project-fork,fbsder/zephyr,erwango/zephyr,finikorg/zephyr,fbsder/zephyr,runchip/zephyr-cc3200,jamesonwilliams/zephyr-kernel,explora26/zephyr,runchip/zephyr-cc3220,holtmann/zephyr,fractalclone/zephyr-riscv,fbsder/zephyr,zephyriot/zephyr,mirzak/zephyr-os,galak/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,zephyrproject-rtos/zephyr,runchip/zephyr-cc3200,jamesonwilliams/zephyr-kernel,tidyjiang8/zephyr-doc,erwango/zephyr,bigdinotech/zephyr,nashif/zephyr,Vudentz/zephyr,erwango/zephyr,punitvara/zephyr,mirzak/zephyr-os,kraj/zephyr,punitvara/zephyr,sharronliu/zephyr,nashif/zephyr,32bitmicro/zephyr,tidyjiang8/zephyr-doc,zephyriot/zephyr,fractalclone/zephyr-riscv,pklazy/zephyr,32bitmicro/zephyr,tidyjiang8/zephyr-doc,jamesonwilliams/zephyr-kernel,explora26/zephyr,bboozzoo/zephyr,bigdinotech/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,kraj/zephyr,coldnew/zephyr-project-fork,rsalveti/zephyr,runchip/zephyr-cc3200,coldnew/zephyr-project-fork,tidyjiang8/zephyr-doc,mbolivar/zephyr,pklazy/zephyr,fbsder/zephyr,aceofall/zephyr-iotos,holtmann/zephyr,runchip/zephyr-cc3220,mirzak/zephyr-os,ldts/zephyr,coldnew/zephyr-project-fork,galak/zephyr,mirzak/zephyr-os,32bitmicro/zephyr,nashif/zephyr,tidyjiang8/zephyr-doc,kraj/zephyr,bigdinotech/zephyr,holtmann/zephyr,fractalclone/zephyr-riscv,bboozzoo/zephyr,galak/zephyr,fractalclone/zephyr-riscv,aceofall/zephyr-iotos,coldnew/zephyr-project-fork,bboozzoo/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,rsalveti/zephyr,finikorg/zephyr,bigdinotech/zephyr,punitvara/zephyr,mbolivar/zephyr,erwango/zephyr,GiulianoFranchetto/zephyr,nashif/zephyr,Vudentz/zephyr,erwango/zephyr,sharronliu/zephyr,galak/zephyr,holtmann/zephyr,kraj/zephyr,Vudentz/zephyr,mbolivar/zephyr,fbsder/zephyr,sharronliu/zephyr,fractalclone/zephyr-riscv,zephyrproject-rtos/zephyr,bboozzoo/zephyr,ldts/zephyr,Vudentz/zephyr,ldts/zephyr,rsalveti/zephyr,jamesonwilliams/zephyr-kernel,GiulianoFranchetto/zephyr,pklazy/zephyr,pklazy/zephyr,mirzak/zephyr-os,bigdinotech/zephyr,rsalveti/zephyr,Vudentz/zephyr