clk: renesas: r8a779f0: Fix SD0H clock name

Correct the misspelled textual name of the SD0H clock.

Fixes: 9b5dd1ff ("clk: renesas: r8a779f0: Add SDH0 clock")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/1f682d338f133608f138ae87323707436ad8c748.1665558014.git.geert+renesas@glider.be