Modem reset implementation (via sysfs) + eDLP update

Modem reset implementation (via sysfs) + eDLP update

BZ: 26113

dlp_main.c
	- Update the module version (1.1)
	- Use the hsi_port_claimed to check if the HSI client is claimed
	- Use the user provided debug parameter value (when used as module)
	- Create a worqueue used for TTY data forwarding

dlp_ctrl.c
	- Backport the modem cold reset implementation from MFLD
	- Add log when a modem reset/power is requested
    - Correct the modem reset & power timing values
	- Factorize the call of gpio_request/gpio_directions to one function
	- Remove the gpio_export call, to stop exporting GPIO => Any applications
	 should use the eDLP module params/ioctls to perform actions

dlp_net.c:
	- Use the same value of TX timeout for TTY/NET channels
	- Add the reset/hangup management
	- No need to clainm the HSI port by the NET if (already done by the probe)
	- Dont call the hsi_flusi in the net_stop function (avoid flushing everything)
	- Send the CANCEL_CONN when closing the NET interface

dlp_tty.c:
    - Add a workqueue for TTY data forwrading (not the rx_complete anymore)
	- Add the reset/hangup management
	- Change TTYNAME defien to IPC_TTYNAME
	- Send the CANCEL_CONN when closing the TTY port

Faouaz TENOUTIT <faouazx.tenoutit@intel.com>

Change-Id: I869f811da89b821d2b93a56bd8606c92037f435d
Signed-off-by: Faouaz TENOUTIT <faouazx.tenoutit@intel.com>
Reviewed-on: http://android.intel.com:8080/40000
Reviewed-by: Roulliere, Pierre <pierre.roulliere@intel.com>
Reviewed-by: Stoltz-douchet, OlivierX <olivierx.stoltz-douchet@intel.com>
Reviewed-by: Predon, Frederic <frederic.predon@intel.com>
Reviewed-by: Lebsir, SamiX <samix.lebsir@intel.com>
Tested-by: Lebsir, SamiX <samix.lebsir@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>