Use ALOGE instead of fprintf in rild

This allows the errors to be seen in the log, otherwise there is
no visibility unless you run rild from the command line.

Change-Id: Id6c25eeef6c2cb118c2dff80a9d3742b99563bde
diff --git a/rild/rild.c b/rild/rild.c
index 77dec1e..b1c5bac 100644
--- a/rild/rild.c
+++ b/rild/rild.c
@@ -245,7 +245,7 @@
     dlHandle = dlopen(rilLibPath, RTLD_NOW);
 
     if (dlHandle == NULL) {
-        fprintf(stderr, "dlopen failed: %s\n", dlerror());
+        ALOGE("dlopen failed: %s", dlerror());
         exit(-1);
     }
 
@@ -254,7 +254,7 @@
     rilInit = (const RIL_RadioFunctions *(*)(const struct RIL_Env *, int, char **))dlsym(dlHandle, "RIL_Init");
 
     if (rilInit == NULL) {
-        fprintf(stderr, "RIL_Init not defined or exported in %s\n", rilLibPath);
+        ALOGE("RIL_Init not defined or exported in %s\n", rilLibPath);
         exit(-1);
     }