ARM: pxa: remove get_memclk_frequency_10khz()

Introduce 'struct clk' for memory and remove
get_memclk_frequency_10khz().

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

drivers/pcmcia/soc_common.h

@@ -10,6 +10,7 @@
 #define _ASM_ARCH_PCMCIA
 
 /* include the world */
+#include <linux/clk.h>
 #include <linux/cpufreq.h>
 #include <pcmcia/ss.h>
 #include <pcmcia/cistpl.h>
@@ -29,6 +30,7 @@ struct soc_pcmcia_socket {
 	 * Info from low level handler
 	 */
 	unsigned int		nr;
+	struct clk		*clk;
 
 	/*
 	 * Core PCMCIA state
@@ -56,6 +58,7 @@ struct soc_pcmcia_socket {
 
 struct skt_dev_info {
 	int nskt;
+	struct clk *clk;
 	struct soc_pcmcia_socket skt[0];
 };