Replace __bss_end__ with __bss_end

Note this is a tree-wide change affecting multiple architectures.

At present we use __bss_start, but mostly __bss_end__. This seems
inconsistent and in a number of places __bss_end is used instead.

Change to use __bss_end for the BSS end symbol throughout U-Boot. This
makes it possible to use the asm-generic/sections.h file on all
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/powerpc/cpu/mpc5xxx/spl_boot.c b/arch/powerpc/cpu/mpc5xxx/spl_boot.c
index 080bd58..35611cc 100644
--- a/arch/powerpc/cpu/mpc5xxx/spl_boot.c
+++ b/arch/powerpc/cpu/mpc5xxx/spl_boot.c
@@ -76,7 +76,7 @@
 	initdram(0);
 
 	/* Clear bss */
-	memset(__bss_start, '\0', __bss_end__ - __bss_start);
+	memset(__bss_start, '\0', __bss_end - __bss_start);
 
 	/*
 	 * Call board_init_r() (SPL framework version) to load and boot
diff --git a/arch/powerpc/cpu/mpc5xxx/start.S b/arch/powerpc/cpu/mpc5xxx/start.S
index ad5bc0a..2b6a800 100644
--- a/arch/powerpc/cpu/mpc5xxx/start.S
+++ b/arch/powerpc/cpu/mpc5xxx/start.S
@@ -66,7 +66,7 @@
 	GOT_ENTRY(transfer_to_handler)
 
 	GOT_ENTRY(__init_end)
-	GOT_ENTRY(__bss_end__)
+	GOT_ENTRY(__bss_end)
 	GOT_ENTRY(__bss_start)
 	END_GOT
 #endif
@@ -694,7 +694,7 @@
 	 * Now clear BSS segment
 	 */
 	lwz	r3,GOT(__bss_start)
-	lwz	r4,GOT(__bss_end__)
+	lwz	r4,GOT(__bss_end)
 
 	cmplw	0, r3, r4
 	beq	6f
diff --git a/arch/powerpc/cpu/mpc5xxx/u-boot-customlayout.lds b/arch/powerpc/cpu/mpc5xxx/u-boot-customlayout.lds
index ac7844d..bc59fad 100644
--- a/arch/powerpc/cpu/mpc5xxx/u-boot-customlayout.lds
+++ b/arch/powerpc/cpu/mpc5xxx/u-boot-customlayout.lds
@@ -91,6 +91,6 @@
    *(COMMON)
    . = ALIGN(4);
   }
-  __bss_end__ = . ;
+  __bss_end = . ;
   PROVIDE (end = .);
 }
diff --git a/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds b/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds
index cab9b92..0500739 100644
--- a/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds
+++ b/arch/powerpc/cpu/mpc5xxx/u-boot-spl.lds
@@ -52,6 +52,6 @@
 		__bss_start = .;
 		*(.bss*)
 		. = ALIGN(4);
-		__bss_end__ = .;
+		__bss_end = .;
 	} > sdram
 }
diff --git a/arch/powerpc/cpu/mpc5xxx/u-boot.lds b/arch/powerpc/cpu/mpc5xxx/u-boot.lds
index 1f46ead..d179dbc 100644
--- a/arch/powerpc/cpu/mpc5xxx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc5xxx/u-boot.lds
@@ -87,6 +87,6 @@
    *(.sbss*)
    . = ALIGN(4);
   }
-  __bss_end__ = . ;
+  __bss_end = . ;
   PROVIDE (end = .);
 }