Rename CONFIG_SYS_TEXT_BASE to CONFIG_TEXT_BASE

The current name is inconsistent with SPL which uses CONFIG_SPL_TEXT_BASE
and this makes it imposible to use CONFIG_VAL().

Rename it to resolve this problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/emulation/qemu-arm/Kconfig b/board/emulation/qemu-arm/Kconfig
index 95dbefa..ed99496 100644
--- a/board/emulation/qemu-arm/Kconfig
+++ b/board/emulation/qemu-arm/Kconfig
@@ -1,6 +1,6 @@
 if TARGET_QEMU_ARM_32BIT || TARGET_QEMU_ARM_64BIT
 
-config SYS_TEXT_BASE
+config TEXT_BASE
 	default 0x00000000
 
 config BOARD_SPECIFIC_OPTIONS # dummy
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index f9883f1..6114e1b 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -12,7 +12,7 @@
 config SYS_CONFIG_NAME
 	default "qemu-riscv"
 
-config SYS_TEXT_BASE
+config TEXT_BASE
 	default 0x81200000 if SPL
 	default 0x80000000 if !RISCV_SMODE
 	default 0x80200000 if RISCV_SMODE && ARCH_RV64I
diff --git a/board/emulation/qemu-x86/Kconfig b/board/emulation/qemu-x86/Kconfig
index 9bb8a72..787751a 100644
--- a/board/emulation/qemu-x86/Kconfig
+++ b/board/emulation/qemu-x86/Kconfig
@@ -12,7 +12,7 @@
 config SYS_CONFIG_NAME
 	default "qemu-x86"
 
-config SYS_TEXT_BASE
+config TEXT_BASE
 	default 0xfff00000 if !SUPPORT_SPL
 	default 0x01110000 if SUPPORT_SPL