target: msm8974: Fix vol down key & reset config
target: msm8974: Fix vol down key & reset config

The method of detecting vol down key and registers to
configure msm reset is different on version 2.0 of the
pmic 8x41. Use these configurations only for devices
with pmic pm8x41.

Change-Id: I05a39fd165737697093916174ff14646a2c86759

Redmi-dev/android_bootable_lk,jbott/lk_gee,efidroid/lk,M1cha/lktris,jbott/lk_gee,M1cha/lktris,detule/lk-g2-spr,t2m-foxfone/kernel_lk,jsr-d10/android_bootable_bootloader_lk,detule/lk-g2-spr,Foxda-Tech/polaris-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,CanarySolutions/little-kernel,jbott/lk_gee,efidroid/lk,jbott/lk_gee,t2m-foxfone/android_kernel_lk,M1cha/lktris,Redmi-dev/android_bootable_lk,mozilla-b2g/fairphone2_kernel_lk,mozilla-b2g/kernel_lk,lg-devs/g2-bootloader,Foxda-Tech/argo8-bootable-bootloader-lk,t2m-foxfone/android_kernel_lk,idor/dk50-bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,idor/dk50-bootable_bootloader_lk,efidroid/lk,t2m-foxfone/android_kernel_lk,mozilla-b2g/kernel_lk,mozilla-b2g/kernel_lk,M1cha/lktris,lg-devs/g2-bootloader,detule/lk-g2-spr,CanarySolutions/little-kernel,lg-devs/g2-bootloader,M1cha/android_bootable_bootloader_lk,lg-devs/g2-bootloader,efidroid/lk,jsr-d10/android_bootable_bootloader_lk,t2m-foxfone/android_kernel_lk,Foxda-Tech/argo8-bootable-bootloader-lk,detule/lk-g2-spr,Foxda-Tech/argo8-bootable-bootloader-lk,Redmi-dev/android_bootable_lk,t2m-foxfone/android_kernel_lk,idor/dk50-bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,t2m-foxfone/kernel_lk,lg-devs/g2-bootloader,mozilla-b2g/kernel_lk,CanarySolutions/little-kernel,M1cha/android_bootable_bootloader_lk,M1cha/lktris,mozilla-b2g/kernel_lk,Foxda-Tech/argo8-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,jbott/lk_gee,CanarySolutions/little-kernel,detule/lk-g2-spr,Foxda-Tech/argo8-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,t2m-foxfone/kernel_lk,Redmi-dev/android_bootable_lk,M1cha/android_bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,t2m-foxfone/kernel_lk,Foxda-Tech/polaris-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,Redmi-dev/android_bootable_lk,mozilla-b2g/fairphone2_kernel_lk,t2m-foxfone/kernel_lk