kmtegr1: Drop CONFIG_KMTEGR1

The only usage of CONFIG_KMTEGR1 can be replaced by
CONFIG_TARGET_KMTEGR1 so do so and remove this other symbol.

Cc: Holger Brunck <holger.brunck@hitachienergy.com>
Cc: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Holger Brunck <holger.brunck@hitachienergy.com>

board/keymile/common/ivm.c

@@ -306,7 +306,7 @@ static int ivm_populate_env(unsigned char *buf, int len, int mac_address_offset)
 		return 0;
 	page2 = &buf[CONFIG_SYS_IVM_EEPROM_PAGE_LEN * 2];
 
-	if (IS_ENABLED(CONFIG_KMTEGR1)) {
+	if (IS_ENABLED(CONFIG_TARGET_KMTEGR1)) {
 		/* KMTEGR1 has a special setup. eth0 has no connection to the
 		 * outside and gets an locally administred MAC address, eth1 is
 		 * the debug interface and gets the official MAC address from

configs/kmtegr1_defconfig

@@ -122,7 +122,6 @@ CONFIG_83XX_PCICLK=0x3ef1480
 CONFIG_SYS_LOAD_ADDR=0x100000
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
-CONFIG_SYS_EXTRA_OPTIONS="KMTEGR1"
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Hit <SPACE> key to stop autoboot in %2ds\n"
 CONFIG_AUTOBOOT_STOP_STR=" "