Convert CONFIG_TPL_TEXT_BASE to Kconfig

This converts the following to Kconfig:
   CONFIG_TPL_TEXT_BASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/P1010RDB.h b/include/configs/P1010RDB.h
index 3a9672b..838cdee 100644
--- a/include/configs/P1010RDB.h
+++ b/include/configs/P1010RDB.h
@@ -70,7 +70,6 @@
 #define CONFIG_SPL_NAND_INIT
 #define CONFIG_SPL_COMMON_INIT_DDR
 #define CONFIG_SPL_MAX_SIZE		(128 << 10)
-#define CONFIG_TPL_TEXT_BASE		0xD0001000
 #define CONFIG_SYS_MPC85XX_NO_RESETVEC
 #define CONFIG_SYS_NAND_U_BOOT_SIZE	(576 << 10)
 #define CONFIG_SYS_NAND_U_BOOT_DST	(0x11000000)
@@ -102,7 +101,7 @@
 #endif
 
 #ifdef CONFIG_TPL_BUILD
-#define CONFIG_SYS_MONITOR_BASE	CONFIG_TPL_TEXT_BASE
+#define CONFIG_SYS_MONITOR_BASE	0xD0001000
 #elif defined(CONFIG_SPL_BUILD)
 #define CONFIG_SYS_MONITOR_BASE	CONFIG_SPL_TEXT_BASE
 #else