Revert "msm: kgsl: Set the power up register list length to 0"

This reverts commit 104d0ce2.

This change is required by GMU FW version 1.0.1 because the
registers in this list are removed from the GMU list of registers,
so that there is no overlap in the registers.

Change-Id: I7601b3435c8b347b230f11759fa6c430f2fb6311
Signed-off-by: Harshdeep Dhatt <hdhatt@codeaurora.org>