MX31: Adding missing iomux pin to MX.31 registers

Signed-off-by: NStefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-mx31/mx31-regs.h

@@ -214,6 +214,10 @@ struct gpio_regs {
 #define MUX_CTL_CSPI1_MISO	0x8d
 #define MUX_CTL_CSPI1_SS0	0x8e
 #define MUX_CTL_CSPI1_SS1	0x8f
+#define MUX_CTL_STXD6		0x90
+#define MUX_CTL_SRXD6		0x91
+#define MUX_CTL_SCK6		0x92
+#define MUX_CTL_SFS6		0x93
 
 #define MUX_CTL_NFC_WP		0xD0
 #define MUX_CTL_NFC_CE		0xD1
@@ -224,6 +228,9 @@ struct gpio_regs {
 #define MUX_CTL_NFC_CLE		0xD7
 
 
+#define MUX_CTL_CAPTURE		0x150
+#define MUX_CTL_COMPARE		0x151
+
 /*
  * Helper macros for the MUX_[contact name]__[pin function] macros
  */