logger: Do not disable Android logging completely if pti_init fails

logger: Do not disable Android logging completely if pti_init fails

BZ: 37726

Currently logger_init exits and android logging is not initialized at
all if init_pti fails. This doesn't make sense as pti is not needed by
Android logging.

Fix this by just printing out error message when failure happens
instead of stopping the initialization.

Change-Id: I51432e414659750f780d626833b8862c82544ce7
Signed-off-by: Jouni Hogander <jouni.hogander@intel.com>
Reviewed-on: http://android.intel.com:8080/49699
Reviewed-by: Guerard, Christophe <christophe.guerard@intel.com>
Reviewed-by: Lebouc, Christophe <christophe.lebouc@intel.com>
Tested-by: Lebouc, Christophe <christophe.lebouc@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>