x86: kconfig: Select ARCH_MISC_INIT in the platform Kconfig

arch_misc_init() is intended to do architecture-dependent stuff.
This is required by each platform.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig
index 216d7d7..ac27e7a 100644
--- a/arch/x86/cpu/baytrail/Kconfig
+++ b/arch/x86/cpu/baytrail/Kconfig
@@ -7,6 +7,7 @@
 config INTEL_BAYTRAIL
 	bool
 	select HAVE_FSP if !EFI
+	select ARCH_MISC_INIT if !EFI
 	imply ENV_IS_IN_SPI_FLASH
 	imply HAVE_INTEL_ME if !EFI
 
diff --git a/arch/x86/cpu/coreboot/coreboot.c b/arch/x86/cpu/coreboot/coreboot.c
index cb5396c..df5ad13 100644
--- a/arch/x86/cpu/coreboot/coreboot.c
+++ b/arch/x86/cpu/coreboot/coreboot.c
@@ -85,8 +85,3 @@
 {
 	return 0;
 }
-
-int arch_misc_init(void)
-{
-	return 0;
-}
diff --git a/arch/x86/cpu/efi/efi.c b/arch/x86/cpu/efi/efi.c
index 8c79eb6..d82147b 100644
--- a/arch/x86/cpu/efi/efi.c
+++ b/arch/x86/cpu/efi/efi.c
@@ -31,8 +31,3 @@
 {
 	return 0;
 }
-
-int arch_misc_init(void)
-{
-	return 0;
-}
diff --git a/arch/x86/cpu/quark/Kconfig b/arch/x86/cpu/quark/Kconfig
index 163caac..641aa22 100644
--- a/arch/x86/cpu/quark/Kconfig
+++ b/arch/x86/cpu/quark/Kconfig
@@ -7,6 +7,7 @@
 config INTEL_QUARK
 	bool
 	select HAVE_RMU
+	select ARCH_MISC_INIT
 
 if INTEL_QUARK