msmzirc : Fix the system partition index value
msmzirc : Fix the system partition index value

Partition table indexing expected by HLOS is from 1 for eMMC. In LK,indexing
starts from 0 so adding 1 to fix the system partition index used while
appending root= to the kernel command line.

Change-Id: I578697fa54f955d9a3977076b3600ff6850fc6eb

Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,CanarySolutions/little-kernel,CanarySolutions/little-kernel,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,efidroid/lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk