MIPS: fix annotation of _start and relocate_code

Correctly annotate _start and relocate_code as functions to
produce more readable disassembly code generated by objdump.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/start.S
index 3b5b622..e95cdca 100644
--- a/arch/mips/cpu/start.S
+++ b/arch/mips/cpu/start.S
@@ -56,9 +56,7 @@
 
 	.set noreorder
 
-	.globl _start
-	.text
-_start:
+ENTRY(_start)
 	/* U-boot entry point */
 	b	reset
 	 nop
@@ -192,6 +190,8 @@
 	jr	t9
 	 move	ra, zero
 
+	END(_start)
+
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *
@@ -202,9 +202,7 @@
  * a1 = gd
  * a2 = destination address
  */
-	.globl	relocate_code
-	.ent	relocate_code
-relocate_code:
+ENTRY(relocate_code)
 	move	sp, a0			# set new stack pointer
 	move	fp, sp
 
@@ -317,4 +315,4 @@
 	jr	t9
 	 move	ra, zero
 
-	.end	relocate_code
+	END(relocate_code)