Fix typo in alias symbol.

Change-Id: I41d2c29bd4a9ba382bbe3440541c8e1506fc5809
diff --git a/libm/x86/s_expm1.S b/libm/x86/s_expm1.S
index 1f21cde..1f9e87b 100644
--- a/libm/x86/s_expm1.S
+++ b/libm/x86/s_expm1.S
@@ -365,7 +365,7 @@
 # -- End  expm1
 
 # Start file scope ASM
-ALIAS_SYMBOL(exmp1l, exmp1);
+ALIAS_SYMBOL(expm1l, expm1);
 # End file scope ASM
 	.section .rodata, "a"
 	.align 16