Prevent DSS reset at bootup by HWMOD

	HWMOD reset and initialization code is skipped for the DSS and submodules.
	Mandatory clocks are set on at init to reset routine to disable them.
	This patch assumes proper configuration being set by pre-kernel (bootloader) code.

Change-Id: I73677a7c5680ee2e797099ae939206e1aa635372
Signed-off-by: Gilles-Arnaud Bleu-Laine <gilles@ti.com>
OMAP: DSS: Add update mode

Fix error for missing update mode enum

Signed-off-by: Israel Cepeda <israel4c@gmail.com>
mfd: twl6030-gpadc: add conversion by channel function
tuna: update twl4030-madc references