i386: Change inline asm global symbols to local

gcc 4.3.2 optimiser creates multiple copies of inline asm (who knows why)
Remove use of global names for labels to prevent 'symbol already defined'
errors

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
diff --git a/board/eNET/eNET.c b/board/eNET/eNET.c
index 57dd635..27dabaa 100644
--- a/board/eNET/eNET.c
+++ b/board/eNET/eNET.c
@@ -51,9 +51,9 @@
 
 	/* wait at least one millisecond */
 	asm("movl	$0x2000,%%ecx\n"
-	    "wait_loop:	pushl %%ecx\n"
+	    "0:	pushl %%ecx\n"
 	    "popl	%%ecx\n"
-	    "loop wait_loop\n": : : "ecx");
+	    "loop 0b\n": : : "ecx");
 
 	/* turn on the SDRAM write buffer */
 	write_mmcr_byte(SC520_DBCTL, 0x11);
diff --git a/cpu/i386/sc520/sc520.c b/cpu/i386/sc520/sc520.c
index ae3b500..1d79210 100644
--- a/cpu/i386/sc520/sc520.c
+++ b/cpu/i386/sc520/sc520.c
@@ -109,9 +109,9 @@
 
 	/* wait at least one millisecond */
 	asm("movl	$0x2000,%%ecx\n"
-	    "wait_loop:	pushl %%ecx\n"
+	    "0:		pushl %%ecx\n"
 	    "popl	%%ecx\n"
-	    "loop wait_loop\n": : : "ecx");
+	    "loop 0b\n": : : "ecx");
 
 	/* turn on the SDRAM write buffer */
 	write_mmcr_byte(SC520_DBCTL, 0x11);