Export public __aeabi* symbols as LIBC_PRIVATE

But keep LIBC as default version for them

Bug: http://b/26391427
Bug: http://b/26410625
Change-Id: I819e354bbba482d1f983d9be15c23fcce10e5dd9
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index f95bd82..86d08ef 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1296,6 +1296,7 @@
     __accept4; # arm x86 mips
     __adddf3; # arm
     __addsf3; # arm
+    __aeabi_atexit; # arm
     __aeabi_cdcmpeq; # arm
     __aeabi_cdcmple; # arm
     __aeabi_cdrcmple; # arm
@@ -1334,6 +1335,18 @@
     __aeabi_llsl; # arm
     __aeabi_llsr; # arm
     __aeabi_lmul; # arm
+    __aeabi_memclr; # arm
+    __aeabi_memclr4; # arm
+    __aeabi_memclr8; # arm
+    __aeabi_memcpy; # arm
+    __aeabi_memcpy4; # arm
+    __aeabi_memcpy8; # arm
+    __aeabi_memmove; # arm
+    __aeabi_memmove4; # arm
+    __aeabi_memmove8; # arm
+    __aeabi_memset; # arm
+    __aeabi_memset4; # arm
+    __aeabi_memset8; # arm
     __aeabi_ui2d; # arm
     __aeabi_ui2f; # arm
     __aeabi_uidiv; # arm