This patch supports packed write command of eMMC4.5 device. Several writes can be grouped in packed command and all data of the individual commands can be sent in a single transfer on the bus. [tlinder@codeaurora.org: Difference in definition: R1_EXP_EVENT -- > R1_EXCEPTION_EVENT] (cherry picked from commit 53f8f574c6c68687098cd064af8224da44de2484) Change-Id: I26ee7c0b957a3aec5e4ffc6d6df806ea38435784 Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Reviewed-by: Maya Erez <merez@codeaurora.org> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> (cherry picked from commit 6d24bc3b6e86412cbfbc37377bbbf196cbdebce9)