Unfreeze graphics.common HAL and add YCBCR_P210 format

YCBCR_P210 is a 10-bit 4:2:2 YCbCr color format

Test: Builds, camera/media/graphics CTS continues to pass
Flag: EXEMPT HAL interface change
Bug: 368395888
Merged-In: I6609870be75675dd08c2203d4b5be49ebd1de447
Change-Id: I6609870be75675dd08c2203d4b5be49ebd1de447

graphics/common/aidl/Android.bp

@@ -43,7 +43,7 @@ aidl_interface {
             enabled: true,
         },
     },
-    frozen: true,
+    frozen: false,
     versions_with_info: [
         {
             version: "1",

graphics/common/aidl/aidl_api/android.hardware.graphics.common/current/android/hardware/graphics/common/PixelFormat.aidl

@@ -68,4 +68,5 @@ enum PixelFormat {
   R_16_UINT = 0x39,
   RG_1616_UINT = 0x3a,
   RGBA_10101010 = 0x3b,
+  YCBCR_P210 = 0x3c,
 }

graphics/common/aidl/android/hardware/graphics/common/PixelFormat.aidl

@@ -531,4 +531,26 @@ enum PixelFormat {
      * interpretation is defined by the dataspace.
      */
     RGBA_10101010 = 0x3b,
+
+    /**
+     * YCBCR_P210 is a 4:2:2 YCbCr semiplanar format comprised of a WxH Y plane
+     * followed by a WxH CbCr plane. Each sample is represented by a 16-bit
+     * little-endian value, with the lower 6 bits set to zero.
+     *
+     * This format must be accepted by the allocator when used with the
+     * following usage flags:
+     *
+     *    - BufferUsage::VIDEO_*
+     *    - BufferUsage::CPU_*
+     *    - BufferUsage::GPU_TEXTURE
+     *
+     * The component values are unsigned normalized to the range [0, 1], whose
+     * interpretation is defined by the dataspace.
+     *
+     * This format is appropriate for 10bit video content.
+     *
+     * Buffers with this format must be locked with IMapper::lockYCbCr
+     * or with IMapper::lock.
+     */
+    YCBCR_P210 = 0x3c,
 }