TL;DR: Look at "Third-party licenses" tab under "Settings" application
for per file licensing info:

"Settings"
└── "About phone"
    └── "Legal information"
        └── "Third-party licenses"


The firmware binaries in this package are covered under different different
redistributable licences. Here is a short breakup of licenses involved:

vendor/
└── linaro/
    ├── linux-firmware/
    │   All but one (ath10k/WCN3390/hw1.0/board-2.bin) binaries are covered
    │   under upstream licenses mentioned in WHENCE file.
    │   https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git (f5d519563ac9)
    │
    │   ath10k/WCN3390/hw1.0/board-2.bin binary for db845c is picked from
    │   linux-firmware.git fork:
    │   https://github.com/andersson/linux-firmware/commit/e165604ca024
    ├── db845c/
    │   ├── dragonboard-845c-bootloader-ufs-aosp/
    │   │   Db845c bootloader/rescue package is covered under LICENSE file.
    │   │   The package can be downloaded from
    │   │   http://snapshots.linaro.org/96boards/dragonboard845c/linaro/rescue/90/dragonboard-845c-bootloader-ufs-aosp-90.zip
    │   │
    │   ├── qdl/
    │   │   QDL board recovery tool (covered under LICENSE) is built from
    │   │   https://git.linaro.org/landing-teams/working/qualcomm/qdl.git (760b3dffb03d)
    │   │
    │   └── RB3_firmware_20190529180356-v4/
    │       These binaries are covered under LICENSE.qcom.txt
    │       The package can be downloaded from
    │       http://releases.linaro.org/96boards/dragonboard845c/qualcomm/firmware/RB3_firmware_20190529180356-v4.zip
    └── rb5/
        ├── qdl/
        │   QDL board recovery tool (covered under LICENSE) is built from
        │   https://git.linaro.org/landing-teams/working/qualcomm/qdl.git (13681fcb359c)
        │
        ├── rb5-bootloader-ufs-aosp/
        │   RB5 bootloader/rescue package is covered under LICENSE file.
        │   The package can be downloaded from
        │   http://snapshots.linaro.org/96boards/qrb5165-rb5/linaro/rescue/21/rb5-bootloader-ufs-aosp-21.zip
        │
        └── RB5_firmware_20210331-v4/
            These binaries are covered under LICENSE.qcom.txt
            The package can be downloaded from
            http://releases.linaro.org/96boards/rb5/qualcomm/firmware/RB5_firmware_20210331-v4.zip