Blackfin: BF51x: fix handling of PH8 (the "internal" SPI0SEL4 pin)

Even though the PH8 pin is only internal to the processor packaging, it
can be controlled like any other GPIO pin.  Now that we have a proper GPIO
define, we can fix the SPI0 CS4 define for the internal SPI flash.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/mach-bf518/include/mach/gpio.h

@@ -7,7 +7,7 @@
 #ifndef _MACH_GPIO_H_
 #define _MACH_GPIO_H_
 
-#define MAX_BLACKFIN_GPIOS 40
+#define MAX_BLACKFIN_GPIOS 41
 
 #define	GPIO_PF0	0
 #define	GPIO_PF1	1
@@ -49,6 +49,7 @@
 #define	GPIO_PH5	37
 #define	GPIO_PH6	38
 #define	GPIO_PH7	39
+#define	GPIO_PH8	40
 
 #define PORT_F GPIO_PF0
 #define PORT_G GPIO_PG0

arch/blackfin/mach-bf518/include/mach/portmux.h

@@ -95,7 +95,7 @@
 #define P_SPI0_SSEL1	(P_DEFINED | P_IDENT(GPIO_PF7) | P_FUNCT(0))
 #define P_SPI0_SSEL2	(P_DEFINED | P_IDENT(GPIO_PG15) | P_FUNCT(0))
 #define P_SPI0_SSEL3	(P_DEFINED | P_IDENT(GPIO_PH4) | P_FUNCT(2))
-#define P_SPI0_SSEL4	(P_DEFINED | P_IDENT(GPIO_PG10) | P_FUNCT(2))
+#define P_SPI0_SSEL4	(P_DEFINED | P_IDENT(GPIO_PH8) | P_FUNCT(2))
 #define P_SPI0_SSEL5	(P_DEFINED | P_IDENT(GPIO_PG3) | P_FUNCT(2))
 
 #define P_SPI1_SS	(P_DEFINED | P_IDENT(GPIO_PH0) | P_FUNCT(1))