[Display] Modify vendor.display.config to version 1.9

Current version was 1.9 on SM7150 then modifed it to pass the VTS test.

Bug: 147407420
Test: VtsTrebleVendorVintfTest doesn't fail on vendor.display.config

adb shell lshal -is
vendor.display.config@1.9::IDisplayConfig/default

adb shell lshal -Vli
DM,FC Y vendor.display.config@1.9::IDisplayConfig/default

adb shell lshal --init-vintf
<hal format="hidl">
     <name>vendor.display.config</name>
     <transport>hwbinder</transport>
     <fqname>@1.9::IDisplayConfig/default</fqname>
</hal>

Change-Id: I2c412c4beead09e1b74cf5f532764db4449f620a