fix: restore third_party/apr and third_party/boringssl

Signed-off-by: Sam Gammon <sam@elide.dev>

Author: sgammon

.gitmodules

@@ -9,3 +9,9 @@
 	url = git@github.com:sqlite/sqlite.git
 	shallow = true
 	ignore = dirty
+[submodule "apr"]
+	path = third_party/apache/apr
+	url = git@github.com:apache/apr.git
+[submodule "boringssl"]
+	path = third_party/google/boringssl
+	url = git@github.com:google/boringssl.git

third_party/Makefile

@@ -25,7 +25,7 @@ ENABLE_SCCACHE ?= yes
 ELIDE_ROOT ?= $(realpath $(shell pwd)/..)
 MACOS_MIN_VERSION ?= 12.3
 
-NATIVE_TOOLS ?= sqlite apr
+NATIVE_TOOLS ?= boringssl sqlite apr
 LANGS ?= pkl
 
 ifeq ($(RELEASE),yes)
@@ -199,7 +199,7 @@ apr: apache/apr/.libs
 
 CFLAGS_APR ?=
 CFLAGS_APR +=$(CFLAGS_BASE) -w
-LDFLAGS_APR ?=-L$(ELIDE_ROOT)/third_party/google/boringssl/build  -lssl -lcrypto
+LDFLAGS_APR ?=-L$(ELIDE_ROOT)/third_party/google/boringssl/build -lssl -lcrypto
 LDFLAGS_APR +=$(LDFLAGS_BASE)
 
 # APR does not link with LLD.