fpga: bridge: add devm_fpga_bridge_create

Add devm_fpga_bridge_create() which is the managed
version of fpga_bridge_create().

Change current bridge drivers to use
devm_fpga_bridge_create().

Signed-off-by: Alan Tull <atull@kernel.org>
Suggested-by: Federico Vaga <federico.vaga@cern.ch>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/driver-api/fpga/fpga-bridge.rst

@@ -10,6 +10,9 @@ API to implement a new FPGA bridge
 .. kernel-doc:: include/linux/fpga/fpga-bridge.h
    :functions: fpga_bridge_ops
 
+.. kernel-doc:: drivers/fpga/fpga-bridge.c
+   :functions: devm_fpga_bridge_create
+
 .. kernel-doc:: drivers/fpga/fpga-bridge.c
    :functions: fpga_bridge_create