Add test for MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO to all.sh

This commit adds a test to tests/scripts/all.sh exercising an
ASan build of the default configuration with

MBEDTLS_PLATFORM_MEMORY enabled,
MBEDTLS_PLATFORM_CALLOC_MACRO set to std calloc
MBEDTLS_PLATFORM_FREE_MACRO   set to std free

(This should functionally be indistinguishable from a default build)
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 53c5e37..4e44a82 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -591,6 +591,18 @@
 scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY # uses syscall() on GNU/Linux
 make CC=gcc CFLAGS='-Werror -O0 -std=c99 -pedantic' lib
 
+msg "build: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
+cleanup
+cp "$CONFIG_H" "$CONFIG_BAK"
+scripts/config.pl set MBEDTLS_PLATFORM_MEMORY
+scripts/config.pl set MBEDTLS_PLATFORM_CALLOC_MACRO calloc
+scripts/config.pl set MBEDTLS_PLATFORM_FREE_MACRO   free
+CC=gcc cmake -D CMAKE_BUILD_TYPE:String=Asan .
+make
+
+msg "test: MBEDTLS_PLATFORM_{CALLOC/FREE}_MACRO enabled (ASan build)"
+make test
+
 if uname -a | grep -F Linux >/dev/null; then
     msg "build/test: make shared" # ~ 40s
     cleanup