rk3288: Change all SoC headers to <soc/headername.h> system

This patch is the start of a series to change all non-x86 SoC-specific
headers to be included as <soc/header.h> instead of the old
<soc/vendor/chip/header.h> or "header.h". It will add an include/soc/
directory under every src/soc/vendor/chip/ and append the .../include/
part of that to the global include path.

This matches the usage of <arch/header.h> for architecture-specific
headers and had already been done for some headers on Tegra. It has the
advantage that a source file which does not know the specific SoC used
(e.g. Tegra files common for multiple chips, or a global include file)
can still include SoC-specific headers and access macros/types defined
there. It also makes the includes for mainboard files more readable, and
reduces the chance to pull in a wrong header when copying mainboard
sources to use a different-related SoC (e.g. using a Tegra124 mainboard
as template for a Tegra132 one).

For easier maintainability, every SoC family is modified individually.
This patch starts out by changing Rk3288. Also alphabetized headers in
affected files since we touch them anyway.

BUG=None
TEST=Whole series: compared binary images for Daisy, Nyan_Blaze,
Rush_Ryu, Storm, Urara and Veyron_Pinky. Confirmed that they are
byte-for-byte identical except for timestamps, hashes, and __LINE__
macro replacements. Compile-tested individual patches.

Change-Id: I4d74a0c56be278e591a9cf43f93e9900e41f4319
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 4ad8b6d2e0280428aa9742f0f7b723c00857334a
Original-Change-Id: I415b8dbe735e572d4ae2cb1df62d66bcce386fff
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/222025
Reviewed-on: http://review.coreboot.org/9349
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/soc/rockchip/rk3288/sdram.c

@@ -17,16 +17,16 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include <arch/io.h>
-#include <string.h>
-#include <types.h>
 #include <console/console.h>
 #include <delay.h>
-#include "addressmap.h"
-#include "clock.h"
-#include "sdram.h"
-#include "grf.h"
-#include "soc.h"
-#include "pmu.h"
+#include <soc/addressmap.h>
+#include <soc/clock.h>
+#include <soc/sdram.h>
+#include <soc/grf.h>
+#include <soc/soc.h>
+#include <soc/pmu.h>
+#include <string.h>
+#include <types.h>
 
 struct rk3288_ddr_pctl_regs {
 	u32 scfg;