video: tegra: host: fix memory leaks with firmware

video: tegra: host: fix memory leaks with firmware

Pointer variables to store fecs and gpccs firmwares are local
variables.
Once firmwares are copied to local buffer, we can release
them with release_firmware() call before returning from function.

Release fecs and gpccs firmwares after copying to
fix memroy leak

Bug 1484645

Change-Id: I118874d65e30b6966f83d35347132d8f764bab8d
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/387139
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>