avb: Make AVB independent of fastboot

AVB only uses CONFIG_FASTBOOT_BUF_ADDR from fastboot for memory.
This memory is used for assigning temporary buffers.
This can be assigned a new variable and used as CONFIG_AVB_BUF_ADDR.
This is to support future boards that support AVB but dont support
USB and therefore dont support FASTBOOT.

Signed-off-by: Usama Arif <usama.arif@arm.com>
Cc: Igor Opaniuk <igor.opaniuk@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Igor Opaniuk <igor.opaniuk@gmail.com>
[trini: Change defaults]
Signed-off-by: Tom Rini <trini@konsulko.com>

common/Kconfig

@@ -1003,7 +1003,7 @@ config HASH
 
 config AVB_VERIFY
 	bool "Build Android Verified Boot operations"
-	depends on LIBAVB && FASTBOOT
+	depends on LIBAVB
 	depends on PARTITION_UUIDS
 	help
 	  This option enables compilation of bootloader-dependent operations,
@@ -1012,6 +1012,24 @@ config AVB_VERIFY
 	    * Helpers to access MMC, similar to drivers/fastboot/fb_mmc.c.
 	    * Helpers to alloc/init/free avb ops.
 
+if AVB_VERIFY
+
+config AVB_BUF_ADDR
+	hex "Define AVB buffer address"
+	default FASTBOOT_BUF_ADDR
+	help
+	  AVB requires a buffer for memory transactions. This variable defines the
+	  buffer address.
+
+config AVB_BUF_SIZE
+	hex "Define AVB buffer SIZE"
+	default FASTBOOT_BUF_SIZE
+	help
+	  AVB requires a buffer for memory transactions. This variable defines the
+	  buffer size.
+
+endif # AVB_VERIFY
+
 config SPL_HASH
 	bool # "Support hashing API (SHA1, SHA256, etc.)"
 	help

common/avb_verify.c

@@ -7,7 +7,6 @@
 #include <avb_verify.h>
 #include <blk.h>
 #include <cpu_func.h>
-#include <fastboot.h>
 #include <image.h>
 #include <malloc.h>
 #include <part.h>