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/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index fb67469..3f76ee6 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -70,7 +70,7 @@
 #endif
 
 	GOT_ENTRY(__init_end)
-	GOT_ENTRY(__bss_end__)
+	GOT_ENTRY(__bss_end)
 	GOT_ENTRY(__bss_start)
 	END_GOT
 
@@ -1784,7 +1784,7 @@
 	 * 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/mpc85xx/u-boot-nand.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
index f7c4a22..8a44a36 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
@@ -103,6 +103,6 @@
   } :bss
 
   . = ALIGN(4);
-  __bss_end__ = . ;
+  __bss_end = . ;
   PROVIDE (end = .);
 }
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
index 46dbaed..15c73c1 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
@@ -80,6 +80,6 @@
 		*(.sbss*)
 		*(.bss*)
 	}
-	__bss_end__ = .;
+	__bss_end = .;
 }
 ASSERT(__init_end <= (0xfff00000 + RESET_VECTOR_OFFSET), "NAND bootstrap too big");
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
index 1c408e2..f2b7bff 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
@@ -83,5 +83,5 @@
 		*(.sbss*)
 		*(.bss*)
 	}
-	__bss_end__ = .;
+	__bss_end = .;
 }
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot.lds b/arch/powerpc/cpu/mpc85xx/u-boot.lds
index 4a40a1f..d2bf7b7 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot.lds
@@ -127,6 +127,6 @@
   } :bss
 
   . = ALIGN(4);
-  __bss_end__ = . ;
+  __bss_end = . ;
   PROVIDE (end = .);
 }