i386: Remove inline asm symbols from .dynsym

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
diff --git a/board/eNET/eNET_start16.S b/board/eNET/eNET_start16.S
index 48e4d83..af2c132 100644
--- a/board/eNET/eNET_start16.S
+++ b/board/eNET/eNET_start16.S
@@ -71,6 +71,8 @@
 .section .bios, "ax"
 .code16
 .globl realmode_reset
+.hidden realmode_reset
+.type realmode_reset, @function
 realmode_reset:
 	/* Alias MMCR to 0xdf000 */
 	movw	$0xfffc, %dx