ata: Make LIBATA means AHCI is enabled mandatory.

The migration deadline for having LIBATA mean that AHCI is also enabled
was v2019.07.  As that has long since passed, adjust the Kconfig
dependencies.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/Makefile b/Makefile
index 77d5573..bb7145e 100644
--- a/Makefile
+++ b/Makefile
@@ -1089,7 +1089,6 @@
 	$(call deprecated,CONFIG_DM_MMC CONFIG_BLK,MMC,v2019.04,$(CONFIG_MMC))
 	$(call deprecated,CONFIG_DM_USB CONFIG_OF_CONTROL CONFIG_BLK,\
 		USB,v2019.07,$(CONFIG_USB))
-	$(call deprecated,CONFIG_AHCI,AHCI,v2019.07, $(CONFIG_LIBATA))
 	$(call deprecated,CONFIG_DM_PCI,PCI,v2019.07,$(CONFIG_PCI))
 	$(call deprecated,CONFIG_DM_VIDEO,video,v2019.07,\
 		$(CONFIG_LCD)$(CONFIG_VIDEO))
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index b5a2798..6f0b772 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -77,8 +77,9 @@
 
 config FSL_SATA
 	bool "Enable Freescale SATA controller driver support"
+	select AHCI
 	select LIBATA
-	select AHCI if BLK
+	depends on BLK
 	help
 	  Enable this driver to support the SATA controller found in
 	  some Freescale PowerPC SoCs.
@@ -94,8 +95,9 @@
 
 config SATA_SIL
 	bool "Enable Silicon Image SIL3131 / SIL3132 / SIL3124 SATA driver support"
+	select AHCI
 	select LIBATA
-	select AHCI if BLK
+	depends on BLK
 	help
 	  Enable this driver to support the SIL3131, SIL3132 and SIL3124
 	  SATA controllers.