ARM: imx: Drop board side icache enable on Data Modul i.MX8M Mini eDM SBC

The icache is enabled in common architecture code since commit:
2fa763baa1c ("ARM: imx: Enable instruction cache early on on i.MX8M")
Drop the board side duplicate code.

Signed-off-by: Marek Vasut <marex@denx.de>
1 file changed