KM/IVM: remove ivm_read_eeprom(void)

This is not used anymore since the procedure was split into a simple
read function and a later alaysis.

The ivm_read_eeprom name is now used for the previous
ivm_simple_read_eeprom function.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 6eb6712..2938861 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -212,7 +212,7 @@
 	}
 #endif
 
-	ivm_simple_read_eeprom(ivm_content, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
+	ivm_read_eeprom(ivm_content, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
 
 	initialize_unit_leds();
 	set_km_env();