juno: Implement 'plat_print_gic_regs' macro ...

The 'plat_print_gic_regs' macro will print the contents of
the GICC_IAR and GICC_CTLR registers.

Change-Id: Ib435522c2d597e15c31fe05f9b0b310b9053206c

juno: Fix build errors due to recent changes ...

This is a miscellaneous commit that fixes all build
errors introduced by the rebase of the Juno codebase
on the latest trusted firmware.

 - Make codebase consistent in its use of #include "" syntax
   for user includes and #include <> syntax for system includes.

 - Sort header files alphabetically

 - Use tag names for structure types.
   Replace instances of the former io_handle and io_dev_handle
   types with uintptr_t.

 - Review the .c and .S files for which header files really need
   including and reorder the #include statements alphabetically.

Change-Id: I1d409fafb6dc257a38992ee15b22b0e890d040b0

juno: Remove vpath usage in platform makefile ...

As per commit bee824171189, remove all usage of the vpath keyword
in makefiles. Specify the relative paths to source files instead.

Also reorder source files in makefiles alphabetically.

Change-Id: Ic85c396f34e7a25a7239533f12bde3eed8da0ca2

juno: Fix build further to changes on UP/MP stacks ...

These changes are necessary because of commit 2bf28e620a6.

Change-Id: I3e42e97638fe895c885bcbf44392a899284956f8

juno: Fix build further to console driver changes ...

Change-Id: I5ff5c1a6253d29fca0b271c08d74fafe33cd8f2d

juno: Pull out some software components ...

On Juno, we don't need the following components so this patch
removes them of the images:
 - semihosting support;
 - FVP power controller support;
 - GICv3 support.

juno: Improve TZC-400 initialisation code ...

- Distinguish Juno specific from platform agnostic constants
 - Define constants for Juno TZC-400 NSAID

juno: Add a handler for 'ARM Architecture' SMC calls ...

Currently UEFI and Linux are using SMC calls in the 'ARM Architecture'
Owning Entity range so lets implement these to get things working.

UEFI probably doesn't actually need to issue the ID_PRESENCE and ID_UID
calls it does, and the device-tree used by Linux could specify the PSCI
identifiers instead. After those changes, this patch isn't required.

Signed-off-by: Jon Medhurst <tixy@linaro.org>

juno: Implement PM ops to power on CPUs ...

Signed-off-by: Jon Medhurst <tixy@linaro.org>

juno: Override platform_get_core_pos and platform_is_primary_cpu ...

Signed-off-by: Jon Medhurst <tixy@linaro.org>

juno: Update memory map and use generic MMU code ...

Signed-off-by: Jon Medhurst <tixy@linaro.org>

juno: Create as a trimmed copy of plat/fvp ...

Signed-off-by: Jon Medhurst <tixy@linaro.org>