you Downloaded firmware for Huawei P8 GRA-CL00 with build GRA-CL00C92B363
Huawei P8 GRA-CL00 Published on Released 2015, April . with Android 4.4.2, up to 6.0; EMUI 3.1.
Display size on Huawei P8 is 5.2" and the resolution is 1080x1920 pixels

You can flash The Stock firmware of GRA-CL00 using This Guide.
more about Huawei P8 GRA-CL00:

this model of huawei powerd by Octa-core (4x2.0 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) and the internal storage size and ram size is 16/64GB storage, microSD card slot.
also it can support microSD, up to 256 GB (uses SIM 2 slot).
besides it can support Hybrid Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is Mali-T628 MP4 and also the Chipset model used on this model is HiSilicon Kirin 930
The camera on the Huawei GRA-CL00 comes with and support 1080p video pixles.