Move most CONFIG_HAVE_BLOCK_DEVICE to Kconfig

config_fallbacks.h has some logic that sets HAVE_BLOCK_DEVICE
based on a list of enabled options.  Moving HAVE_BLOCK_DEVICE to
Kconfig allows us to drastically shrink the logic in
config_fallbacks.h

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Rename HAVE_BLOCK_DEVICE to CONFIG_BLOCK_DEVICE]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 4d9ef87..7368b6d 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -672,6 +672,7 @@
 	bool "GPT (GUID Partition Table) command"
 	select PARTITION_UUIDS
 	select EFI_PARTITION
+	select HAVE_BLOCK_DEVICE
 	imply RANDOM_UUID
 	help
 	  Enable the 'gpt' command to ready and write GPT style partition
@@ -819,6 +820,7 @@
 config CMD_PART
 	bool "part"
 	select PARTITION_UUIDS
+	select HAVE_BLOCK_DEVICE
 	help
 	  Read and display information about the partition table on
 	  various media.
@@ -911,6 +913,7 @@
 
 config CMD_USB
 	bool "usb"
+	select HAVE_BLOCK_DEVICE
 	help
 	  USB support.