msm: npu: Calculate NPU FMAX based on hw fuse value

NPU FMAX can be calculated using the formula
FMax = hw_fuse * 19.2 /2 MHz
Then it will be rounded up to the closest frequency in NPU's
frequency plan to determine the maximum power level that it can
be set.

Change-Id: I2ab325054ee26d4a798b2d0f6fa815bc38aea330
Signed-off-by: Da Hoon Pyun <dpyun@codeaurora.org>