Convert CONFIG_SYS_MPC85XX_NO_RESETVEC to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_MPC85XX_NO_RESETVEC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/P1010RDB-PB_36BIT_SPIFLASH_defconfig b/configs/P1010RDB-PB_36BIT_SPIFLASH_defconfig
index 4e1eac5..c93e4d4 100644
--- a/configs/P1010RDB-PB_36BIT_SPIFLASH_defconfig
+++ b/configs/P1010RDB-PB_36BIT_SPIFLASH_defconfig
@@ -15,6 +15,8 @@
 CONFIG_SPL_SPI=y
 CONFIG_MPC85xx=y
 CONFIG_TARGET_P1010RDB_PB=y
+CONFIG_SYS_MPC85XX_NO_RESETVEC=y
+CONFIG_SPL_SYS_MPC85XX_NO_RESETVEC=y
 CONFIG_PHYS_64BIT=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y