Merge "docs: Among devices which support Vulkan 1.1, a subset support it via...

Merge "docs: Among devices which support Vulkan 1.1, a subset support it via software emulation. Refer to the NDK docs on how to address these devices. See also cr/292399283." into rvc-dev am: e41357fc

Change-Id: I3dde6acf46818ffbf32417acf2876340df4019b0