i386: Fix multiple definitions of __show_boot_progress

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/i386/start.S b/cpu/i386/start.S
index 1a54dd1..51a27aa 100644
--- a/cpu/i386/start.S
+++ b/cpu/i386/start.S
@@ -55,7 +55,7 @@
 	/* so we try to indicate progress */
 	movw	$0x01, %ax
 	movl	$.progress0, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress0:
 
 	/* size memory */
@@ -74,7 +74,7 @@
 	/* indicate (lack of) progress */
 	movw	$0x81, %ax
 	movl	$.progress0a, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress0a:
 	jmp 	die
 mem_ok:
@@ -82,7 +82,7 @@
 	/* indicate progress */
 	movw	$0x02, %ax
 	movl	$.progress1, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress1:
 
 	/* create a stack after the bss */
@@ -104,7 +104,7 @@
 	/* indicate (lack of) progress */
 	movw	$0x82, %ax
 	movl	$.progress1a, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress1a:
 	jmp die
 
@@ -113,7 +113,7 @@
 	/* indicate progress */
 	movw	$0x03, %ax
 	movl	$.progress2, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress2:
 
 	/* copy data section to ram, size must be 4-byte aligned */
@@ -136,7 +136,7 @@
 	/* indicate (lack of) progress */
 	movw	$0x83, %ax
 	movl	$.progress2a, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress2a:
 	jmp 	die
 
@@ -145,7 +145,7 @@
 	/* indicate progress */
 	movw	$0x04, %ax
 	movl	$.progress3, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress3:
 
 	/* clear bss section in ram, size must be 4-byte aligned  */
@@ -168,7 +168,7 @@
 	/* indicate (lack of) progress */
 	movw	$0x84, %ax
 	movl	$.progress3a, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress3a:
 	jmp 	die
 
@@ -180,7 +180,7 @@
 	/* indicate progress */
 	movw	$0x05, %ax
 	movl	$.progress4, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress4:
 
 	call	start_i386boot  /* Enter, U-boot! */
@@ -188,7 +188,7 @@
 	/* indicate (lack of) progress */
 	movw	$0x85, %ax
 	movl	$.progress4a, %ebp
-	jmp	__show_boot_progress
+	jmp	show_boot_progress
 .progress4a:
 
 die:	hlt