media: venus: core: Fix a resource leak in the error handling path of 'venus_probe()'

A successful 'of_platform_populate()' call should be balanced by a
corresponding 'of_platform_depopulate()' call in the error handling path
of the probe, as already done in the remove function.

A successful 'venus_firmware_init()' call should be balanced by a
corresponding 'venus_firmware_deinit()' call in the error handling path
of the probe, as already done in the remove function.

Update the error handling path accordingly.

Fixes: f9799fcc ("media: venus: firmware: register separate platform_device for firmware loader")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>