tools: Set the tool's default binary name

This patch: fafd3ec9

 assumes that tools must build from
the main makefile folder.
This assumption leads to the error when somebody wants to
build a tool from the tool's folder.
Hence changes are done to provide the default binary name
in the tool's makefile.

Change-Id: Iae570a7f8d322151376b6feb19e739300eecc3fc
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

tools/cert_create/Makefile

@@ -7,6 +7,7 @@
 PLAT		:= none
 V		?= 0
 DEBUG		:= 0
+CRTTOOL		?= cert_create${BIN_EXT}
 BINARY		:= $(notdir ${CRTTOOL})
 OPENSSL_DIR	:= /usr
 COT		:= tbbr

tools/encrypt_fw/Makefile

@@ -7,6 +7,7 @@
 V		?= 0
 BUILD_INFO	?= 1
 DEBUG		:= 0
+ENCTOOL		?= encrypt_fw${BIN_EXT}
 BINARY		:= $(notdir ${ENCTOOL})
 OPENSSL_DIR	:= /usr
 

tools/fiptool/Makefile

@@ -8,6 +8,7 @@ MAKE_HELPERS_DIRECTORY := ../../make_helpers/
 include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
 include ${MAKE_HELPERS_DIRECTORY}build_env.mk
 
+FIPTOOL ?= fiptool${BIN_EXT}
 PROJECT := $(notdir ${FIPTOOL})
 OBJECTS := fiptool.o tbbr_config.o
 V ?= 0

tools/sptool/Makefile

@@ -8,6 +8,7 @@ MAKE_HELPERS_DIRECTORY := ../../make_helpers/
 include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
 include ${MAKE_HELPERS_DIRECTORY}build_env.mk
 
+SPTOOL  ?= sptool${BIN_EXT}
 PROJECT := $(notdir ${SPTOOL})
 OBJECTS := sptool.o
 V ?= 0