Remove dashes from image names: 'BL3-x' --> 'BL3x'

This patch removes the dash character from the image name, to
follow the image terminology in the Trusted Firmware Wiki page:

    https://github.com/ARM-software/arm-trusted-firmware/wiki

Changes apply to output messages, comments and documentation.

non-ARM platform files have been left unmodified.

Change-Id: Ic2a99be4ed929d52afbeb27ac765ceffce46ed76
diff --git a/tools/fip_create/fip_create.c b/tools/fip_create/fip_create.c
index 5bb716e..f0d0791 100644
--- a/tools/fip_create/fip_create.c
+++ b/tools/fip_create/fip_create.c
@@ -67,11 +67,11 @@
 	  "bl2", NULL, FLAG_FILENAME },
 	{ "SCP Firmware SCP_BL2", UUID_SCP_FIRMWARE_SCP_BL2,
 	  "scp_bl2", NULL, FLAG_FILENAME},
-	{ "EL3 Runtime Firmware BL3-1", UUID_EL3_RUNTIME_FIRMWARE_BL31,
+	{ "EL3 Runtime Firmware BL31", UUID_EL3_RUNTIME_FIRMWARE_BL31,
 	  "bl31", NULL, FLAG_FILENAME},
-	{ "Secure Payload BL3-2 (Trusted OS)", UUID_SECURE_PAYLOAD_BL32,
+	{ "Secure Payload BL32 (Trusted OS)", UUID_SECURE_PAYLOAD_BL32,
 	  "bl32", NULL, FLAG_FILENAME},
-	{ "Non-Trusted Firmware BL3-3", UUID_NON_TRUSTED_FIRMWARE_BL33,
+	{ "Non-Trusted Firmware BL33", UUID_NON_TRUSTED_FIRMWARE_BL33,
 	  "bl33", NULL, FLAG_FILENAME},
 	/* Key Certificates */
 	{ "Root Of Trust key certificate", UUID_ROT_KEY_CERT,