am33xx: pcm051: Remove wp pin mux for sd-card

The pcm051 does not have the wp pin connected to the sd-card socket.
Therefore remove the pinmux for the pin. The was a carry-over from
the am335x evm code.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>

board/phytec/pcm051/mux.c

@@ -35,7 +35,6 @@ static struct module_pin_mux mmc0_pin_mux[] = {
 	{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_DAT0 */
 	{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_CLK */
 	{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_CMD */
-	{OFFSET(mcasp0_aclkr), (MODE(4) | RXACTIVE)},		/* MMC0_WP */
 	{OFFSET(spi0_cs1), (MODE(5) | RXACTIVE | PULLUP_EN)},	/* MMC0_CD */
 	{-1},
 };