Disable stripping of binaries

We don't want to strip these as this is handled separately at package
time.

Upstream-Status: Inappropriate [configuration]

Signed-off-by: Chunrong Guo <B40290@freescale.com>

--- a/Makefileold	2015-01-07 03:45:32.786477574 -0600
+++ b/Makefile	2015-01-07 03:46:28.426475588 -0600
@@ -62,7 +62,7 @@
 # CFLAGS += -DENABLE_64BIT_SUPPORT
 
 
-LDFLAGS += -s
+
 
 # Add inputs and outputs from these tool invocations to the build variables