ufshcd_comp_devman_upiu() was poorly named leading people to think it was a
completion function. Rename it to ufshcd_compose_devman_upiu().

Link: https://lore.kernel.org/r/20200814095034.20709-2-huobean@gmail.comReviewed-by: NStanley Chu <stanley.chu@mediatek.com>
Reviewed-by: NAsutosh Das <asutoshd@codeaurora.org>
Acked-by: NAvri Altman <avri.altman@wdc.com>
Signed-off-by: NBean Huo <beanhuo@micron.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>