configs: keystone2: Standardise U-boot prompt

Standardise U-Boot prompt on all keystone2 platforms
instead of platform specific prompt.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

configs/k2e_evm_defconfig

@@ -16,7 +16,6 @@ CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_HUSH_PARSER=y
-CONFIG_SYS_PROMPT="K2E EVM # "
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y

configs/k2e_hs_evm_defconfig

@@ -10,7 +10,6 @@ CONFIG_OF_BOARD_SETUP=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
-CONFIG_SYS_PROMPT="K2E HS EVM # "
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y

configs/k2hk_evm_defconfig

@@ -16,7 +16,6 @@ CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_HUSH_PARSER=y
-CONFIG_SYS_PROMPT="K2HK EVM # "
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y

configs/k2hk_hs_evm_defconfig

@@ -10,7 +10,6 @@ CONFIG_OF_BOARD_SETUP=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
-CONFIG_SYS_PROMPT="K2HK EVM # "
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y

configs/k2l_evm_defconfig

@@ -16,7 +16,6 @@ CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_HUSH_PARSER=y
-CONFIG_SYS_PROMPT="K2L EVM # "
 CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_ASKENV=y