Correct defconfigs using savedefconfig

Update the defconfig files to match their canonical form, as produced by
'make safedefconfig'.

This is the result of running 'tools/moveconfig.py -s' on the tree.

Signed-off-by: Simon Glass <sjg@chromium.org>

configs/am43xx_hs_evm_defconfig

@@ -2,7 +2,7 @@ CONFIG_ARM=y
 CONFIG_AM43XX=y
 CONFIG_TI_SECURE_DEVICE=y
 CONFIG_TARGET_AM43XX_EVM=y
-CONFIG_ISW_ENTRY_ADDR=0x403018e0
+CONFIG_ISW_ENTRY_ADDR=0x40302ae0
 CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"
 CONFIG_SPL=y

configs/gwventana_defconfig

@@ -2,6 +2,7 @@ CONFIG_ARM=y
 CONFIG_ARCH_MX6=y
 CONFIG_TARGET_GW_VENTANA=y
 CONFIG_SPL_STACK_R_ADDR=0x18000000
+CONFIG_DM_SERIAL=y
 CONFIG_SPL=y
 CONFIG_SPL_STACK_R=y
 CONFIG_FIT=y

configs/tb100_defconfig

 CONFIG_ARC=y
 CONFIG_TARGET_TB100=y
 CONFIG_SYS_CLK_FREQ=500000000
+CONFIG_DM_SERIAL=y
 CONFIG_SYS_TEXT_BASE=0x84000000
 CONFIG_DEFAULT_DEVICE_TREE="abilis_tb100"
 CONFIG_BOOTDELAY=3