spm: Remove SPM Alpha 1 prototype and support files

The Secure Partition Manager (SPM) prototype implementation is
being removed. This is preparatory work for putting in place a
dispatcher component that, in turn, enables partition managers
at S-EL2 / S-EL1.

This patch removes:

- The core service files (std_svc/spm)
- The Resource Descriptor headers (include/services)
- SPRT protocol support and service definitions
- SPCI protocol support and service definitions

Change-Id: Iaade6f6422eaf9a71187b1e2a4dffd7fb8766426
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
Signed-off-by: Artsem Artsemenka <artsem.artsemenka@arm.com>
diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index 1a251b8..fa855cf 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -61,7 +61,7 @@
  * plat_arm_mmap array defined for each BL stage.
  */
 #if defined(IMAGE_BL31)
-# if ENABLE_SPM || SPM_MM
+# if SPM_MM
 #  define PLAT_ARM_MMAP_ENTRIES		9
 #  define MAX_XLAT_TABLES		9
 #  define PLAT_SP_IMAGE_MMAP_REGIONS	30
@@ -116,11 +116,7 @@
  * calculated using the current BL31 PROGBITS debug size plus the sizes of
  * BL2 and BL1-RW
  */
-#if ENABLE_SPM
-#define PLAT_ARM_MAX_BL31_SIZE		UL(0x60000)
-#else
 #define PLAT_ARM_MAX_BL31_SIZE		UL(0x3B000)
-#endif
 
 #ifndef __aarch64__
 /*