Revert "Add mem training workaround to 4Gb training files"

This reverts commit cc0be542c44fa0fc966e6788ed8b064e9c1e5f7d.

Change-Id: I100fb7843f433908f65b71e7eef57b0204f51b80

board/freescale/imx8mq_phanbell/ddr/lpddr4_timing_kingston_4gb.c

diff --git a/board/freescale/imx8mq_phanbell/ddr/lpddr4_timing_kingston_4gb.c b/board/freescale/imx8mq_phanbell/ddr/lpddr4_timing_kingston_4gb.c
index ea95d57..a2ea37e 100644
--- a/board/freescale/imx8mq_phanbell/ddr/lpddr4_timing_kingston_4gb.c
+++ b/board/freescale/imx8mq_phanbell/ddr/lpddr4_timing_kingston_4gb.c
@@ -18,7 +18,7 @@
 	{0x3d400000,0xa3080020},
 	{0x3d400028,0x0},
 	{0x3d400020,0x203},
-	{0x3d400024,0x186a000},
+	{0x3d400024,0x3e800},
 	{0x3d400064,0x6100e0},
 	{0x3d4000d0,0xc003061c},
 	{0x3d4000d4,0x9e0000},
@@ -48,7 +48,7 @@
 	{0x3d4001b0,0x11},
 	{0x3d4001b4,0x170a},
 	{0x3d4001c0,0x1},
-	{0x3d4001c4,0x0},
+	{0x3d4001c4,0x1},
 	{0x3d4000f4,0x639},
 	{0x3d400108,0x70e1617},
 	{0x3d400200,0x17},
@@ -58,7 +58,7 @@
 	{0x3d400214,0x7070707},
 	{0x3d400218,0x7070707},
 	{0x3d402020,0x1},
-	{0x3d402024,0x518b00},
+	{0x3d402024,0xd0c0},
 	{0x3d402050,0x20d040},
 	{0x3d402064,0x14002f},
 	{0x3d4020dc,0x940009},