vold: set klog level so e2fsck output is logged

When mounting an encrypted filesystem vold calls fs_mgr, which
will call e2fsck on the fielsystem if it's configured to, and
fs_mgr will attempt to log the output the kernel log. However,
if won't log anything unless the klog level is set to 6, aka INFO.

Change-Id: I8ac34941330262ea3414681b872fbbeb75391461

main.cpp

@@ -27,6 +27,7 @@
 
 #define LOG_TAG "Vold"
 
+#include "cutils/klog.h"
 #include "cutils/log.h"
 #include "cutils/properties.h"
 
@@ -52,6 +53,9 @@ int main() {
 
     mkdir("/dev/block/vold", 0755);
 
+    /* For when cryptfs checks and mounts an encrypted filesystem */
+    klog_set_level(6);
+
     /* Create our singleton managers */
     if (!(vm = VolumeManager::Instance())) {
         SLOGE("Unable to create VolumeManager");