global: Rename SPL_TPL_ to PHASE_

Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.

Update the comment in bootstage to refer to this symbol, instead of
SPL_

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/Makefile b/arch/x86/cpu/Makefile
index 8899830..39c8b08 100644
--- a/arch/x86/cpu/Makefile
+++ b/arch/x86/cpu/Makefile
@@ -9,7 +9,7 @@
 ifeq ($(CONFIG_$(XPL_)X86_64),y)
 extra-y	= start64.o
 else
-ifeq ($(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),y)
+ifeq ($(CONFIG_$(PHASE_)X86_16BIT_INIT),y)
 extra-y	= start.o
 else
 ifndef CONFIG_SPL
@@ -24,7 +24,7 @@
 endif
 endif
 
-extra-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += resetvec.o start16.o
+extra-$(CONFIG_$(PHASE_)X86_16BIT_INIT) += resetvec.o start16.o
 
 obj-y	+= cpu.o
 ifndef CONFIG_TPL_BUILD
@@ -54,10 +54,10 @@
 obj-$(CONFIG_INTEL_QUEENSBAY) += queensbay/
 obj-$(CONFIG_INTEL_TANGIER) += tangier/
 obj-$(CONFIG_APIC) += lapic.o ioapic.o
-obj-$(CONFIG_$(SPL_TPL_)ACPI_GPE) += acpi_gpe.o
+obj-$(CONFIG_$(PHASE_)ACPI_GPE) += acpi_gpe.o
 obj-$(CONFIG_QFW) += qfw_cpu.o
 ifndef CONFIG_SYS_COREBOOT
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += irq.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += irq.o
 endif
 ifndef CONFIG_$(XPL_)X86_64
 obj-$(CONFIG_$(XPL_)SMP) += mp_init.o
diff --git a/arch/x86/cpu/broadwell/Makefile b/arch/x86/cpu/broadwell/Makefile
index 6c6d0ed..dfe013e 100644
--- a/arch/x86/cpu/broadwell/Makefile
+++ b/arch/x86/cpu/broadwell/Makefile
@@ -2,8 +2,8 @@
 #
 # Copyright (c) 2016 Google, Inc
 
-obj-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += cpu.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += cpu_full.o
+obj-$(CONFIG_$(PHASE_)X86_16BIT_INIT) += cpu.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += cpu_full.o
 
 ifdef CONFIG_SPL
 ifndef CONFIG_XPL_BUILD
@@ -18,7 +18,7 @@
 endif
 endif
 
-ifeq ($(CONFIG_$(SPL_TPL_)X86_32BIT_INIT),)
+ifeq ($(CONFIG_$(PHASE_)X86_32BIT_INIT),)
 #obj-y += cpu_from_spl.o
 endif
 
@@ -29,5 +29,5 @@
 obj-y += pch.o
 obj-y += pinctrl_broadwell.o
 obj-y += power_state.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += refcode.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += sdram.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += refcode.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += sdram.o
diff --git a/arch/x86/cpu/intel_common/Makefile b/arch/x86/cpu/intel_common/Makefile
index d2db589..a28e6c7 100644
--- a/arch/x86/cpu/intel_common/Makefile
+++ b/arch/x86/cpu/intel_common/Makefile
@@ -5,10 +5,10 @@
 obj-$(CONFIG_INTEL_ACPIGEN) += acpi.o
 
 ifdef CONFIG_HAVE_MRC
-obj-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += car.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += me_status.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += report_platform.o
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += mrc.o
+obj-$(CONFIG_$(PHASE_)X86_16BIT_INIT) += car.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += me_status.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += report_platform.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += mrc.o
 endif
 
 ifndef CONFIG_XPL_BUILD
@@ -28,7 +28,7 @@
 obj-y += lpss.o
 obj-$(CONFIG_$(XPL_)INTEL_GENERIC_WIFI) += generic_wifi.o
 ifndef CONFIG_EFI_APP
-obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += microcode.o
+obj-$(CONFIG_$(PHASE_)X86_32BIT_INIT) += microcode.o
 ifndef CONFIG_$(XPL_)X86_64
 obj-y += microcode.o
 endif