Adding on Siva’s comment above:
It is possible to change the partition size. But, it is generally discouraged.
As the Drive software stack is extensive, the partition sizes are laid out based on those needs.
To increase the size of one partition, the required size has to come from somewhere else.
e.g., if you want to increase the first partition on emmc, all the other partitions on that emmc
have to be reduced to claim enough space and also moved to make room for the first partition.
Also, with Virtual Storage Server in place, in addition to changing VM configuration for increasing
one partition size, the Virtual Storage Server configuration also needs to be updated according to new
partition sizes.
Because of these reasons and others, it is typically discouraged to modify system partition sizes.