fpga: xilinx exclusive commands

Ensure all Xilinx exclusive fpga commands have a KConfig symbol and
dependency to FPGA_XILINX listed. Remove (Xilinx only) text from the
help command.

Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@amd.com>
Link: https://lore.kernel.org/r/20250121130138.1999916-5-ibai.erkiaga-elorza@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 81d2b9b..d59a000 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1186,15 +1186,15 @@
 	  a partial bitstream.
 
 config CMD_FPGA_LOADBP
-	bool "fpga loadbp - load partial bitstream (Xilinx only)"
-	depends on CMD_FPGA
+	bool "fpga loadbp - load partial bitstream"
+	depends on CMD_FPGA && FPGA_XILINX
 	help
 	  Supports loading an FPGA device from a bitstream buffer containing
 	  a partial bitstream.
 
 config CMD_FPGA_LOADFS
-	bool "fpga loadfs - load bitstream from FAT filesystem (Xilinx only)"
-	depends on CMD_FPGA
+	bool "fpga loadfs - load bitstream from FAT filesystem"
+	depends on CMD_FPGA && FPGA_XILINX
 	help
 	  Supports loading an FPGA device from a FAT filesystem.
 
@@ -1206,7 +1206,7 @@
 
 config CMD_FPGA_LOAD_SECURE
 	bool "fpga loads - loads secure bitstreams"
-	depends on CMD_FPGA
+	depends on CMD_FPGA && FPGA_XILINX
 	select FPGA_LOAD_SECURE
 	help
 	  Enables the fpga loads command which is used to load secure