fastboot: move FASTBOOT_FLASH options into Kconfig

Move FASTBOOT_MBR_NAME and FASTBOOT_GPT_NAME into Kconfig.
Add dependency on the FASTBOOT_FLASH setting (also for FASTBOOT_MBR_NAME).
Remove the now redundant GPT_ENTRY_NAME.

Signed-off-by: Petr Kulhavy <brain@jikos.cz>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Add FIXME about xxx_PARTITION needing to be in Kconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/README b/README
index 3ea4d01..f29bf50 100644
--- a/README
+++ b/README
@@ -1681,7 +1681,7 @@
 		to generate and write the Backup GUID Partition Table.)
 		This occurs when the specified "partition name" on the
 		"fastboot flash" command line matches this value.
-		Default is GPT_ENTRY_NAME (currently "gpt") if undefined.
+		The default is "gpt" if undefined.
 
 		CONFIG_FASTBOOT_MBR_NAME
 		The fastboot "flash" command supports writing the downloaded
diff --git a/cmd/fastboot/Kconfig b/cmd/fastboot/Kconfig
index a93d1c0..5d2facc 100644
--- a/cmd/fastboot/Kconfig
+++ b/cmd/fastboot/Kconfig
@@ -50,11 +50,35 @@
 
 config FASTBOOT_FLASH_MMC_DEV
 	int "Define FASTBOOT MMC FLASH default device"
+	depends on FASTBOOT_FLASH
 	help
 	  The fastboot "flash" command requires additional information
 	  regarding the non-volatile storage device. Define this to
 	  the eMMC device that fastboot should use to store the image.
 
+config FASTBOOT_GPT_NAME
+	string "Target name for updating GPT"
+	depends on FASTBOOT_FLASH
+	default "gpt"
+	help
+	  The fastboot "flash" command supports writing the downloaded
+	  image to the Protective MBR and the Primary GUID Partition
+	  Table. (Additionally, this downloaded image is post-processed
+	  to generate and write the Backup GUID Partition Table.)
+	  This occurs when the specified "partition name" on the
+	  "fastboot flash" command line matches the value defined here.
+	  The default target name for updating GPT is "gpt".
+
+config FASTBOOT_MBR_NAME
+	string "Target name for updating MBR"
+	depends on FASTBOOT_FLASH
+	default "mbr"
+	help
+	  The fastboot "flash" command allows to write the downloaded image
+	  to the Master Boot Record. This occurs when the "partition name"
+	  specified on the "fastboot flash" command line matches the value
+	  defined here. The default target name for updating MBR is "mbr".
+
 endif # USB_FUNCTION_FASTBOOT
 
 endmenu
diff --git a/common/fb_mmc.c b/common/fb_mmc.c
index 4bc68a7..81a3bd0 100644
--- a/common/fb_mmc.c
+++ b/common/fb_mmc.c
@@ -14,12 +14,16 @@
 #include <mmc.h>
 #include <div64.h>
 
-#if defined(CONFIG_EFI_PARTITION) && !defined(CONFIG_FASTBOOT_GPT_NAME)
-#define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME
+/*
+ * FIXME: Ensure we always set these names via Kconfig once xxx_PARTITION is
+ * migrated
+ */
+#ifndef CONFIG_FASTBOOT_GPT_NAME
+#define CONFIG_FASTBOOT_GPT_NAME "gpt"
 #endif
 
 
-#if defined(CONFIG_DOS_PARTITION) && !defined(CONFIG_FASTBOOT_MBR_NAME)
+#ifndef CONFIG_FASTBOOT_MBR_NAME
 #define CONFIG_FASTBOOT_MBR_NAME "mbr"
 #endif
 
diff --git a/include/part_efi.h b/include/part_efi.h
index c8fc873..317c044 100644
--- a/include/part_efi.h
+++ b/include/part_efi.h
@@ -27,7 +27,6 @@
 #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
 #define GPT_HEADER_REVISION_V1 0x00010000
 #define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
-#define GPT_ENTRY_NAME "gpt"
 #define GPT_ENTRY_NUMBERS		128
 #define GPT_ENTRY_SIZE			128