linux-firmware: bump version and fix hash

linux-firmware: bump version and fix hash

Bump the package to the most up to date version and fix the sha256 hash.
linux-firmware was failing due to an incorrect sha256 hash, as follows:

Fetching all references
warning: redirecting to https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
remote: Counting objects: 6972, done.
remote: Total 6972 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (6972/6972), 196.63 MiB | 4.22 MiB/s, done.
Resolving deltas: 100% (4516/4516), done.
>From http://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware
 * [new branch]      master     -> origin/master
warning: redirecting to https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
warning: refname '8d69bab7a3da1913113ea98cefb73d5fa6988286' is ambiguous.
Git normally never creates a ref that ends with 40 hex characters
because it will be ignored when you just specify 40-hex. These refs
may be created by mistake. For example,

  git checkout -b $br $(git rev-parse ...)

where "$br" is somehow empty and a 40-hex ref is created. Please
examine these refs and maybe delete them. Turn this message off by
running "git config advice.objectNameWarning false"
ERROR: linux-firmware-8d69bab7a3da1913113ea98cefb73d5fa6988286.tar.gz has wrong sha256 hash:
ERROR: expected: 905be20e4e2d7628dea4e2e99195520fc0cce8b247faabdc52fc44a3ff2ceb04
ERROR: got     : b9fce72a7b0b55eb311701dfd47914bc9e037134fa401d33e6e73ab9ebc9d116
ERROR: Incomplete download, or man-in-the-middle (MITM) attack

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>