pistachio: Change all SoC headers to <soc/headername.h> system

This patch aligns pistachio to the new SoC header include scheme.
Also alphabetized headers in affected files since we touch them anyway.

BUG=None
TEST=Tested with whole series. Compiled Urara.

Change-Id: I3ed405a3efdeec28965538d19a22f2b5b8204f01
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224503
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/google/urara/memlayout.ld

@@ -1 +1 @@
-#include <soc/imgtec/pistachio/memlayout.ld>
+#include <soc/memlayout.ld>

src/soc/imgtec/pistachio/Makefile.inc

@@ -42,6 +42,8 @@ romstage-y += romstage.c
 romstage-y += monotonic_timer.c
 romstage-y += timestamp.c
 
+INCLUDES += -Isrc/soc/imgtec/pistachio/include/
+
 # Generate the actual coreboot bootblock code
 $(objcbfs)/bootblock.raw: $(objcbfs)/bootblock.elf
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"

src/soc/imgtec/pistachio/spi.c

@@ -16,10 +16,10 @@
 #include <string.h>
 #include <stdlib.h>
 #include <timer.h>
+#include <soc/cpu.h>
+#include <soc/spi.h>
 #include <spi-generic.h>
 #include <spi_flash.h>
-#include "cpu.h"
-#include "spi.h"
 
 #if !CONFIG_SPI_ATOMIC_SEQUENCING
 #error "Unsupported SPI driver API"