mmc: msm_sdcc: enable the write packing control

Write packing control prevents degradation of read throughput
in parallel read and write scenarios when the write packing
feature is enabled

(cherry picked from commit dffdbad64760df63918aad2cb148f7286f852dd1)
Change-Id: Id1aadcd21c88619e4c848872a149542495ede180
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
(cherry picked from commit 681c3b752850b8d8a8ef8e16905e1b1fb290551a)
Signed-off-by: Maya Erez <merez@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8960-storage.c b/arch/arm/mach-msm/board-8960-storage.c
index 973b347..678474d 100644
--- a/arch/arm/mach-msm/board-8960-storage.c
+++ b/arch/arm/mach-msm/board-8960-storage.c
@@ -296,7 +296,7 @@
 	.mpm_sdiowakeup_int = MSM_MPM_PIN_SDC1_DAT1,
 	.msm_bus_voting_data = &sps_to_ddr_bus_voting_data,
 	.uhs_caps2	= MMC_CAP2_HS200_1_8V_SDR,
-	.packed_write	= MMC_CAP2_PACKED_WR,
+	.packed_write	= MMC_CAP2_PACKED_WR | MMC_CAP2_PACKED_WR_CONTROL,
 };
 #endif