Replace __asm references with __asm__

__asm__ follows gcc's documented syntax and is generally more common
than __asm.  This change is only asthetic and should not affect
functionality.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/board/MAI/AmigaOneG3SE/via686.c b/board/MAI/AmigaOneG3SE/via686.c
index 2427ce5..752a464 100644
--- a/board/MAI/AmigaOneG3SE/via686.c
+++ b/board/MAI/AmigaOneG3SE/via686.c
@@ -211,7 +211,7 @@
     }
 }
 
-__asm         ("    .globl via_calibrate_time_base \n"
+__asm__       ("    .globl via_calibrate_time_base \n"
 	       "via_calibrate_time_base:	   \n"
 	       "   lis     9, 0xfe00		   \n"
 	       "   li      0, 0x00		   \n"