TI SK-AM62-SIP Remove Edge Target

Caused build failures in OS because not in upstream u-boot yet.

Author: Grippy98

config/boards/sk-am62-sip.conf

@@ -11,7 +11,7 @@ BOOT_FDT_FILE="ti/k3-am6254xxl-sk.dts"
 TIBOOT3_BOOTCONFIG="am6254xxl_evm_r5_defconfig"
 TIBOOT3_FILE="tiboot3-am62x-hs-fs-evm.bin"
 DEFAULT_CONSOLE="serial"
-KERNEL_TARGET="vendor,vendor-rt,vendor-edge,edge"
+KERNEL_TARGET="vendor,vendor-rt,vendor-edge"
 KERNEL_TEST_TARGET="vendor"
 SERIALCON="ttyS2"
 ATF_BOARD="lite"