ICameraProvider@2.6: Add documentation about resource cost constraints for concurrent camera combinations.

- Also clarify requirements for MONOCHROME devices supporting Y8 outputs.

Bug: 150225538

Test: builds (doc change only)

Change-Id: I992f1bcee4bf266b6e66ddb32ece8291381c8e56
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>
diff --git a/current.txt b/current.txt
index 8e2016d..5cc7e85 100644
--- a/current.txt
+++ b/current.txt
@@ -639,7 +639,7 @@
 07d0a252b2d8fa35887908a996ba395cf392968395fc30afab791f46e0c22a52 android.hardware.boot@1.1::IBootControl
 74049a402be913963edfdd80828a53736570e9d8124a1bf18166b6ed46a6b0ab android.hardware.boot@1.1::types
 b8c63679e1a3874b356f3e691aecce1191d38f59063cf2ed2dce8a9d4cabf00e android.hardware.camera.device@3.6::ICameraDevice
-daad72a2f482d8a1f660d0e99ac1b78fedb414a4cfbe3fa56b2cd480e5d6f0cb android.hardware.camera.provider@2.6::ICameraProvider
+99aae72ae75a8ddf63ccffbc585f3a55f4d0847b4adff3d7a0f8bd9e2305bec1 android.hardware.camera.provider@2.6::ICameraProvider
 8f8d9463508ff9cae88eb35c429fd0e2dbca0ca8f5de7fdf836cc0c4370becb6 android.hardware.camera.provider@2.6::ICameraProviderCallback
 a35d5151b48505f06a775b38c0e2e265f80a845d92802324c643565807f81c53 android.hardware.camera.device@3.6::types
 c1aa508d00b66ed5feefea398fd5edf28fa651ac89773adad7dfda4e0a73a952 android.hardware.cas@1.2::ICas