[Cutout] Make cutout rect approximation intersect with y=0

Tokay, Caiman, and Komodo all had cutout rect approximations that did
not intersect with the top edge of the phone (they did not start at
y=0). This was causing logic in SystemUI not to be aware of _which_ edge
the cutout was associated with, and thus in some cases would not account
for potential letterboxing.

This change modifies the rect approximations to start at y=0, and adds
that same amount to their height so that the sizing should be the same.

Test: manually verified the .svg shapes
Test: manual on device
Bug: 319203599
Flag: NONE
Change-Id: I2e669b8d178eb5ace29b0d4f68c1e500b545d601
(cherry picked from commit 4990157024)

caiman/overlay/frameworks/base/core/res/res/values/config.xml

@@ -179,7 +179,7 @@
     </string>
 
     <string translatable="false" name="config_mainBuiltInDisplayCutoutRectApproximation">
-        m 586,43.5 h 115 v 115 H 586 Z
+        m 586,0 h 108.5 v 155.5 H 586 Z
         @left
     </string>
     <!-- A string config in svg path format for the main display shape.

komodo/overlay/frameworks/base/core/res/res/values/config.xml

@@ -179,7 +179,7 @@
     </string>
 
     <string translatable="false" name="config_mainBuiltInDisplayCutoutRectApproximation">
-        m 614.53715,43.5 h 115 v 115 h -115 z
+        m 614.53715,0 h 115 v 158.5 h -115 z
         @left
     </string>
     <!-- A string config in svg path format for the main display shape.

tokay/overlay/frameworks/base/core/res/res/values/config.xml

@@ -179,7 +179,7 @@
     </string>
 
     <string translatable="false" name="config_mainBuiltInDisplayCutoutRectApproximation">
-        m 484.5,20.5 h 110 v 121 h -110 z
+        m 484.5,0 h 110 v 141.5 h -110 z
         @left
     </string>
     <!-- A string config in svg path format for the main display shape.