ata: Migrate CONFIG_SCSI_AHCI to Kconfig

And use 'imply' liberally.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig
index 1d876b1..f47beda 100644
--- a/arch/x86/cpu/baytrail/Kconfig
+++ b/arch/x86/cpu/baytrail/Kconfig
@@ -19,6 +19,7 @@
 	imply MMC_SDHCI
 	imply MMC_SDHCI_SDMA
 	imply SCSI
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply SYS_NS16550
 	imply USB
diff --git a/arch/x86/cpu/braswell/Kconfig b/arch/x86/cpu/braswell/Kconfig
index 31ac279..042ad2b 100644
--- a/arch/x86/cpu/braswell/Kconfig
+++ b/arch/x86/cpu/braswell/Kconfig
@@ -19,6 +19,7 @@
 	imply MMC_SDHCI
 	imply MMC_SDHCI_SDMA
 	imply SCSI
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply SYS_NS16550
 	imply USB
diff --git a/arch/x86/cpu/broadwell/Kconfig b/arch/x86/cpu/broadwell/Kconfig
index bc2dba2..42018dc 100644
--- a/arch/x86/cpu/broadwell/Kconfig
+++ b/arch/x86/cpu/broadwell/Kconfig
@@ -13,6 +13,7 @@
 	imply ICH_SPI
 	imply INTEL_BROADWELL_GPIO
 	imply SCSI
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply USB
 	imply USB_EHCI_HCD
diff --git a/arch/x86/cpu/coreboot/Kconfig b/arch/x86/cpu/coreboot/Kconfig
index 60eb45f..fa3b64f 100644
--- a/arch/x86/cpu/coreboot/Kconfig
+++ b/arch/x86/cpu/coreboot/Kconfig
@@ -10,6 +10,7 @@
 	imply MMC_PCI
 	imply MMC_SDHCI
 	imply MMC_SDHCI_SDMA
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply SYS_NS16550
 	imply USB
diff --git a/arch/x86/cpu/ivybridge/Kconfig b/arch/x86/cpu/ivybridge/Kconfig
index c214ea0..85ea6c9 100644
--- a/arch/x86/cpu/ivybridge/Kconfig
+++ b/arch/x86/cpu/ivybridge/Kconfig
@@ -14,6 +14,7 @@
 	imply ICH_SPI
 	imply INTEL_ICH6_GPIO
 	imply SCSI
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply USB
 	imply USB_EHCI_HCD
diff --git a/arch/x86/cpu/qemu/Kconfig b/arch/x86/cpu/qemu/Kconfig
index 81444f3..0a801aa 100644
--- a/arch/x86/cpu/qemu/Kconfig
+++ b/arch/x86/cpu/qemu/Kconfig
@@ -9,6 +9,7 @@
 	select ARCH_EARLY_INIT_R
 	imply AHCI_PCI
 	imply E1000
+	imply SCSI_AHCI
 	imply SYS_NS16550
 	imply USB
 	imply USB_EHCI_HCD
diff --git a/arch/x86/cpu/queensbay/Kconfig b/arch/x86/cpu/queensbay/Kconfig
index 835de85..460ede0 100644
--- a/arch/x86/cpu/queensbay/Kconfig
+++ b/arch/x86/cpu/queensbay/Kconfig
@@ -18,6 +18,7 @@
 	imply MMC_SDHCI_SDMA
 	imply PCH_GBE
 	imply SCSI
+	imply SCSI_AHCI
 	imply SPI_FLASH
 	imply SYS_NS16550
 	imply USB