x86: Add Kconfig options to be used by arch/x86/cpu/config.mk

Add RESET_SEG_START, RESET_SEG_SIZE and RESET_VEC_LOC Kconfig options
and make arch/x86/cpu/config.mk use these options.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bradford <andrew.bradford@kodakalaris.com>
Tested-by: Simon Glass <sjg@chromium.org>

arch/x86/Kconfig

@@ -69,6 +69,21 @@ config X86_RESET_VECTOR
 	bool
 	default n
 
+config RESET_SEG_START
+	hex
+	depends on X86_RESET_VECTOR
+	default 0xffff0000
+
+config RESET_SEG_SIZE
+	hex
+	depends on X86_RESET_VECTOR
+	default 0x10000
+
+config RESET_VEC_LOC
+	hex
+	depends on X86_RESET_VECTOR
+	default 0xfffffff0
+
 config SYS_X86_START16
 	hex
 	depends on X86_RESET_VECTOR

arch/x86/cpu/config.mk

@@ -10,8 +10,8 @@ CROSS_COMPILE ?= i386-linux-
 PLATFORM_CPPFLAGS += -D__I386__
 
 # DO NOT MODIFY THE FOLLOWING UNLESS YOU REALLY KNOW WHAT YOU ARE DOING!
-LDPPFLAGS += -DRESET_SEG_START=0xffff0000
-LDPPFLAGS += -DRESET_SEG_SIZE=0x10000
-LDPPFLAGS += -DRESET_VEC_LOC=0xfffffff0
+LDPPFLAGS += -DRESET_SEG_START=$(CONFIG_RESET_SEG_START)
+LDPPFLAGS += -DRESET_SEG_SIZE=$(CONFIG_RESET_SEG_SIZE)
+LDPPFLAGS += -DRESET_VEC_LOC=$(CONFIG_RESET_VEC_LOC)
 LDPPFLAGS += -DSTART_16=$(CONFIG_SYS_X86_START16)
 LDPPFLAGS += -DRESET_BASE="CONFIG_SYS_TEXT_BASE + (CONFIG_SYS_MONITOR_LEN - RESET_SEG_SIZE)"