refactor(libc): clean up dependencies in libc

- Removing platform dependencies from libc modules.
- Replacing panicking with actual error handling.
- Debug macros are included indirectly from assert.h. Removing
  "platform_def.h" from assert.h and adding "common/debug.h"
  where the macros are used.
- Removing hack for fixing PLAT_LOG_LEVEL_ASSERT to 40.
  Instead removing assert with expression, as this
  does not provide additional information.

Signed-off-by: Claus Pedersen <claustbp@google.com>
Change-Id: Icc201ea7b63c1277e423c1cfd13fd6816c2bc568
diff --git a/drivers/amlogic/crypto/sha_dma.c b/drivers/amlogic/crypto/sha_dma.c
index fceb1c0..5c16d49 100644
--- a/drivers/amlogic/crypto/sha_dma.c
+++ b/drivers/amlogic/crypto/sha_dma.c
@@ -8,6 +8,7 @@
 #include <assert.h>
 #include <crypto/sha_dma.h>
 #include <lib/mmio.h>
+#include <platform_def.h>
 
 #include "aml_private.h"
 
diff --git a/drivers/arm/gic/v3/gic-x00.c b/drivers/arm/gic/v3/gic-x00.c
index 75eb69a..83ef32f 100644
--- a/drivers/arm/gic/v3/gic-x00.c
+++ b/drivers/arm/gic/v3/gic-x00.c
@@ -16,6 +16,7 @@
 #include <assert.h>
 
 #include <arch_helpers.h>
+#include <common/debug.h>
 #include <drivers/arm/arm_gicv3_common.h>
 #include <drivers/arm/gicv3.h>
 
diff --git a/drivers/arm/gic/v3/gicv3_helpers.c b/drivers/arm/gic/v3/gicv3_helpers.c
index f3852d2..446d0ad 100644
--- a/drivers/arm/gic/v3/gicv3_helpers.c
+++ b/drivers/arm/gic/v3/gicv3_helpers.c
@@ -12,6 +12,8 @@
 #include <common/interrupt_props.h>
 #include <drivers/arm/gic_common.h>
 
+#include <platform_def.h>
+
 #include "../common/gic_common_private.h"
 #include "gicv3_private.h"
 
diff --git a/drivers/auth/cryptocell/713/cryptocell_crypto.c b/drivers/auth/cryptocell/713/cryptocell_crypto.c
index 077317e..3ac16af 100644
--- a/drivers/auth/cryptocell/713/cryptocell_crypto.c
+++ b/drivers/auth/cryptocell/713/cryptocell_crypto.c
@@ -8,6 +8,8 @@
 #include <stddef.h>
 #include <string.h>
 
+#include <platform_def.h>
+
 #include <drivers/arm/cryptocell/713/bsv_api.h>
 #include <drivers/arm/cryptocell/713/bsv_crypto_asym_api.h>
 #include <drivers/auth/crypto_mod.h>
diff --git a/drivers/console/multi_console.c b/drivers/console/multi_console.c
index 08b8e9f..a68a018 100644
--- a/drivers/console/multi_console.c
+++ b/drivers/console/multi_console.c
@@ -5,6 +5,7 @@
  */
 
 #include <assert.h>
+#include <stddef.h>
 
 #include <drivers/console.h>
 
diff --git a/drivers/measured_boot/rss/rss_measured_boot.c b/drivers/measured_boot/rss/rss_measured_boot.c
index fe2baf0..6cbb4dc 100644
--- a/drivers/measured_boot/rss/rss_measured_boot.c
+++ b/drivers/measured_boot/rss/rss_measured_boot.c
@@ -5,6 +5,7 @@
  */
 #include <assert.h>
 #include <stdint.h>
+#include <string.h>
 
 #include <common/debug.h>
 #include <drivers/auth/crypto_mod.h>
diff --git a/drivers/rpi3/gpio/rpi3_gpio.c b/drivers/rpi3/gpio/rpi3_gpio.c
index f938f56..55a8832 100644
--- a/drivers/rpi3/gpio/rpi3_gpio.c
+++ b/drivers/rpi3/gpio/rpi3_gpio.c
@@ -10,6 +10,7 @@
 #include <lib/mmio.h>
 #include <drivers/delay_timer.h>
 #include <drivers/rpi3/gpio/rpi3_gpio.h>
+#include <platform_def.h>
 
 static uintptr_t reg_base;