board/BuR: use default u-boot prompt on all B&R boards

There is no need to have some specific prompt, so we drop this within
defconfigs.
Signed-off-by: NHannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: NTom Rini <trini@konsulko.com>

configs/kwb_defconfig

@@ -2,7 +2,6 @@ CONFIG_ARM=y
 CONFIG_TARGET_KWB=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1"
-CONFIG_SYS_PROMPT="U-Boot (BuR V2.0)# "
 # CONFIG_CMD_BOOTD is not set
 # CONFIG_CMD_BOOTM is not set
 # CONFIG_CMD_GO is not set

configs/tseries_mmc_defconfig

@@ -2,7 +2,6 @@ CONFIG_ARM=y
 CONFIG_TARGET_TSERIES=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1,EMMC_BOOT"
-CONFIG_SYS_PROMPT="U-Boot (BuR V2.0)# "
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set

configs/tseries_nand_defconfig

@@ -2,7 +2,6 @@ CONFIG_ARM=y
 CONFIG_TARGET_TSERIES=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1,NAND"
-CONFIG_SYS_PROMPT="U-Boot (BuR V2.0)# "
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set

configs/tseries_spi_defconfig

@@ -2,7 +2,6 @@ CONFIG_ARM=y
 CONFIG_TARGET_TSERIES=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1,SPI_BOOT,EMMC_BOOT"
-CONFIG_SYS_PROMPT="U-Boot (BuR V2.0)# "
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_XIMG is not set