Convert CONFIG_SPL_RELOC_TEXT_BASE et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SPL_RELOC_TEXT_BASE
   CONFIG_SPL_RELOC_STACK
   CONFIG_SPL_RELOC_MALLOC_ADDR
   CONFIG_SPL_RELOC_MALLOC_SIZE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/freescale/p1_p2_rdb_pc/spl.c b/board/freescale/p1_p2_rdb_pc/spl.c
index 22156f2..580972d 100644
--- a/board/freescale/p1_p2_rdb_pc/spl.c
+++ b/board/freescale/p1_p2_rdb_pc/spl.c
@@ -63,7 +63,7 @@
 	/* NOTE - code has to be copied out of NAND buffer before
 	 * other blocks can be read.
 	 */
-	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
+	relocate_code(CONFIG_VAL(RELOC_STACK), 0, CONFIG_SPL_RELOC_TEXT_BASE);
 }
 
 void board_init_r(gd_t *gd, ulong dest_addr)
@@ -79,8 +79,8 @@
 
 	arch_cpu_init();
 	get_clocks();
-	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
-			CONFIG_SPL_RELOC_MALLOC_SIZE);
+	mem_malloc_init(CONFIG_VAL(RELOC_MALLOC_ADDR),
+			CONFIG_VAL(RELOC_MALLOC_SIZE));
 	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
 
 #ifdef CONFIG_SPL_ENV_SUPPORT