lge: display: remove lge's patches related to hdmi_pll_enable()

There is a new patch from caf to address this issue, and the existing
patch from LGE is getting in the way.
Thus remove this code to replace it with the newer one.
msm_fb: HDMI: Update HPD logic to address HDMI PLL related issues

In the current implementation, the regulators pertaining to the
HDMI core are turned off/on as part of the configuration of the
HDP circuitry. As a result, the regulator that powers the HDMI
PLL is turned off before the HDMI clocks on the PLL are disabled.
This might lead to the PLL not getting locked when it is re-enabled.

This change turns on and off the regulators and clocks in proper
sequence.

CRs-dixed: 360135 358598
Change-Id: Ie3630b543e78e83dc565edc32239935135ca4ca5
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Ramakrishna Prasad N <crpn@codeaurora.org>

Conflicts:

	drivers/video/msm/hdmi_msm.c
Revert "lge: d1l: enable the IOMMU driver for lg d1l devices"

This reverts commit 8dfd6c6dae849dd3445e8488cb71e791a95dd2a2.

This seems to be the cause of crash issues when waking up the device.
Needs to be re-enabled after the actual cause is found.