ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H

Given that we want the default to not have any <mach/memory.h> and given
that there are now fewer cases where it is still provided than the cases
where it is not at this point, this makes sense to invert the logic and
just identify the exception cases.

The word "need" instead of "have" was chosen to construct the config
symbol so not to suggest that having a mach/memory.h file is actually
a feature that one should aim for.
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>

arch/arm/include/asm/memory.h

@@ -18,7 +18,7 @@
 #include <linux/types.h>
 #include <asm/sizes.h>
 
-#ifndef CONFIG_NO_MACH_MEMORY_H
+#ifdef CONFIG_NEED_MACH_MEMORY_H
 #include <mach/memory.h>
 #endif
 

arch/arm/plat-omap/Kconfig

@@ -14,6 +14,7 @@ config ARCH_OMAP1
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select GENERIC_IRQ_CHIP
+	select NEED_MACH_MEMORY_H
 	help
 	  "Systems based on omap7xx, omap15xx or omap16xx"
 
@@ -22,7 +23,6 @@ config ARCH_OMAP2PLUS
 	select CLKDEV_LOOKUP
 	select GENERIC_IRQ_CHIP
 	select OMAP_DM_TIMER
-	select NO_MACH_MEMORY_H
 	help
 	  "Systems based on OMAP2, OMAP3 or OMAP4"