firmware: raspberrypi: Introduce devm_rpi_firmware_get()

stable inclusion
from stable-v5.10.180
commit 3aa2503717ba8b7cf529527d9bad09947f2f65a0
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8DDFN

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3aa2503717ba8b7cf529527d9bad09947f2f65a0



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[ Upstream commit f663204c ]

It'll simplify the firmware handling for most consumers.

Suggested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Stable-dep-of: 5bca3688 ("Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>