Moving duplicate vk_format helper functions to common vulkan/util/vk_format.h and also renaming imagination's vk_format_get_component_size_in_bits to match how amd and freedreno name the same function. Not moving this function to common code as freedreno's implementation is a bit different.
Also changing amd's vk_format_get_component_bits to use util_format_get_component_bits implementation.
Signed-off-by: Rajnesh Kanwal rajnesh.kanwal@imgtec.com