ARM: dove: mark 'putc' as inline

This can cause a randconfig warning without the 'inline' flag
that every other platform uses:

In file included from arch/arm/boot/compressed/misc.c:29:
arch/arm/mach-dove/include/mach/uncompress.h:14:13: error: 'putc' defined but not used [-Werror=unused-function]
   14 | static void putc(const char c)
      |             ^~~~

Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]'
Signed-off-by: Arnd Bergmann <[email protected]>

Author: arndb

arch/arm/mach-dove/include/mach/uncompress.h

@@ -11,7 +11,7 @@
 
 #define LSR_THRE	0x20
 
-static void putc(const char c)
+static inline void putc(const char c)
 {
 	int i;
 
@@ -24,7 +24,7 @@ static void putc(const char c)
 	*UART_THR = c;
 }
 
-static void flush(void)
+static inline void flush(void)
 {
 }