Revert "DM sample: force enabling HDMI1 and HDMI2 connectors"

This reverts commit 47116e8.

if eDP panel connected, something wrong happens:

eDP	HDMI1	HDMI2
---------------------------------------------------------
SOS	UOS1	UOS1	Good.
SOS	UOS1		BAD. SOS is OK. NO show in HDMI1
SOS		UOS1	BAD. SOS is OK. NO show in HDMI2
SOS			BAD.

This is also a temp solution: if only HDMI2 is connected, SOS will be
shown on HDMI2. But UOS1 is expected in some cases.

Signed-off-by: Xinyun Liu <xinyun.liu@intel.com>
Reviewed-by: Min He <min.he@intel.com>

Author: xinyunliu

devicemodel/samples/apl-mrb/sos_bootargs_debug.txt

@@ -1 +1 @@
-pci_devices_ignore=(0:18:2) maxcpus=1 console=tty0 console=ttyS0 i915.nuclear_pageflip=1 root=/dev/mmcblk1p1 rw rootwait quiet loglevel=3 no_timer_check consoleblank=0 i915.enable_initial_modeset=1 i915.tsd_init=7 i915.tsd_delay=2000 video=DP-1:d video=DP-2:d video=HDMI-A-1:e video=HDMI-A-2:e i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 hvlog=2M@0x6de00000 reboot_panic=p,w cma=32M@0-
+pci_devices_ignore=(0:18:2) maxcpus=1 console=tty0 console=ttyS0 i915.nuclear_pageflip=1 root=/dev/mmcblk1p1 rw rootwait quiet loglevel=3 no_timer_check consoleblank=0 i915.enable_initial_modeset=1 i915.tsd_init=7 i915.tsd_delay=2000 video=DP-1:d video=DP-2:d i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 hvlog=2M@0x6de00000 reboot_panic=p,w cma=32M@0-

devicemodel/samples/apl-mrb/sos_bootargs_release.txt

@@ -1 +1 @@
-maxcpus=1 console=tty0 i915.nuclear_pageflip=1 root=/dev/mmcblk1p1 rw rootwait quiet loglevel=3 no_timer_check consoleblank=0 i915.enable_initial_modeset=1 i915.tsd_init=7 i915.tsd_delay=2000 video=DP-1:d video=DP-2:d video=HDMI-A-1:e video=HDMI-A-2:e i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 cma=32M@0-
+maxcpus=1 console=tty0 i915.nuclear_pageflip=1 root=/dev/mmcblk1p1 rw rootwait quiet loglevel=3 no_timer_check consoleblank=0 i915.enable_initial_modeset=1 i915.tsd_init=7 i915.tsd_delay=2000 video=DP-1:d video=DP-2:d i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 cma=32M@0-