driver: usdhc: fix spec 1.0 sdcard can't work

The SD Card below Physical Layer 1.10 does not support CMD6.
When usdhc_sd_init is executed, it will fail to exit due to
execution of CMD6, causing the SD Card to not work normally.

For different SD Card Physical Layer specifications,
the following modifications have been made:
Version 1.10 and above support CMD6.
Version 3.0 and above support CMD6 Group 3 (driver strength
and current limit) .

Signed-off-by: Frank Li <lgl88911@163.com>
1 file changed