configs: j721e: Remove HBMC_AM654 config
Kernel commit
d93036b47f35 ("arm64: dts: ti: k3-j721e-mcu_wakeup: Add
HyperBus node") was merged to kernel without its dependent patch [1].
Similar fix is needed in U-Boot, and hbmc currently breaks boot. Till
this gets fixed in U-Boot, disable the config by default so that the
hbmc probe that happens in board/ti/j721e/evm.c will not take place
and lead to boot failure.
[1] https://lore.kernel.org/all/
20230424184810.29453-1-afd@ti.com/
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>