feat(gpt): add support for large GPT mappings

This patch adds support for large GPT mappings using
Contiguous descriptors. The maximum size of supported
contiguous block in MB is defined in RME_GPT_MAX_BLOCK
build parameter and takes values 0, 2, 32 and 512 and
by default set to 2 in make_helpers/defaults.mk.
Setting RME_GPT_MAX_BLOCK value to 0 disables use of
Contiguous descriptors.
Function gpt_tlbi_by_pa_ll() and its declaration
are removed from lib/aarch64/misc_helpers.S and
include/arch/aarch64/arch_helpers.h, because the
GPT library now uses tlbirpalos_xxx() functions.

Change-Id: Ia9a59bde1741c5666b4ca1de9324e6dfd6f734eb
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>
diff --git a/Makefile b/Makefile
index 2ba4fa7..b6093e7 100644
--- a/Makefile
+++ b/Makefile
@@ -1331,6 +1331,7 @@
 	PSCI_EXTENDED_STATE_ID \
 	PSCI_OS_INIT_MODE \
 	RESET_TO_BL31 \
+	RME_GPT_MAX_BLOCK \
 	SEPARATE_CODE_AND_RODATA \
 	SEPARATE_BL2_NOLOAD_REGION \
 	SEPARATE_NOBITS_REGION \