Use pkg-config-native to find the libssl headers.

Upstream-Status: Inappropriate
Signed-off-by: Ross Burton <ross.burton@arm.com>

diff --git a/scripts/Makefile b/scripts/Makefile
index b4b7d8b58..26a5160ee 100644
--- a/third_party/linux/scripts/Makefile
+++ b/third_party/linux/scripts/Makefile
@@ -10,8 +10,8 @@

 HOST_EXTRACFLAGS += -I$(srctree)/tools/include

-CRYPTO_LIBS = $(shell pkg-config --libs libcrypto 2> /dev/null || echo -lcrypto)
-CRYPTO_CFLAGS = $(shell pkg-config --cflags libcrypto 2> /dev/null)
+CRYPTO_LIBS = $(shell pkg-config-native --libs libcrypto 2> /dev/null || echo -lcrypto)
+CRYPTO_CFLAGS = $(shell pkg-config-native --cflags libcrypto 2> /dev/null)

 hostprogs-$(CONFIG_BUILD_BIN2C)  += bin2c
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms