From: Melissa Wen
> Sent: 21 March 2020 20:37
> The previous memset operation was not correctly setting zero on the
> alpha channel to compute the crc, and as a result, the
> pipe-A-cursor-alpha-transparent subtest of the IGT test kms_cursor_crc
> was crashing. To avoid errors of misinterpretation
The previous memset operation was not correctly setting zero on the
alpha channel to compute the crc, and as a result, the
pipe-A-cursor-alpha-transparent subtest of the IGT test kms_cursor_crc
was crashing. To avoid errors of misinterpretation related to
endianness, this solution uses a bitfield
