samples: http_get: cannot run on QEMU

[gopiotr]

Describe the bug
After build samples/net/sockets/http_get/ for QEMU and run it, program finish with FATAL ERROR.

To Reproduce
Steps to reproduce the behavior:

1. Run in separate terminals two programs: ./loop-socat.sh and sudo ./loop-slip-tap.sh from net-tools repository (https://github.com/zephyrproject-rtos/net-tools)
2. In third terminal build samples/net/sockets/http_get/ for QEMU by command:
   west build -p always -b qemu_x86 samples/net/sockets/http_get/
3. Run sample by command:
   west build -t run
4. observe errors

Expected behavior
Program should send http GET request and print response.

Impact
Cannot run samples on QEMU, which require access to Internet

Logs and console output

-- west build: running target run
[0/1] To exit from QEMU enter: 'CTRL+a, x'[QEMU] CPU: qemu32,+nx,+pae
SeaBIOS (version zephyr-v1.0.0-0-g31d4e0e-dirty-20200714_234759-fv-az50-zephyr)
Booting from ROM..*** Booting Zephyr OS build v2.7.99-611-g9cb94df57a94 ***
Preparing HTTP GET request for http://google.com:80/
[00:00:00.020,000] <inf> net_config: Initializing network
[00:00:00.030,000] <inf> net_config: IPv4 address: 192.0.2.1
[00:00:00.030,000] <err> os: Page fault at address 0x24717e (error code 0x10)
[00:00:00.030,000] <err> os: Linear address not present in page tables
[00:00:00.030,000] <err> os: Access violation: supervisor thread not allowed to execute
[00:00:00.030,000] <err> os: PTE: not present
[00:00:00.030,000] <err> os: EAX: 0x00000000, EBX: 0x00000000, ECX: 0x00000000, EDX: 0x00127500
[00:00:00.030,000] <err> os: ESI: 0x00000000, EDI: 0x0010bfdc, EBP: 0x0012fa7c, ESP: 0x0012fa6c
[00:00:00.030,000] <err> os: EFLAGS: 0x00000202 CS: 0x0008 CR3: 0x00137000
[00:00:00.030,000] <err> os: call trace:
[00:00:00.030,000] <err> os: EIP: 0x0024717e
[00:00:00.030,000] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
[00:00:00.030,000] <err> os: Current thread: 0x1284c0 (unknown)
[00:00:00.040,000] <err> os: Halting system
FAILED: zephyr/CMakeFiles/run /home/redbeard/zephyrproject/zephyr/build/zephyr/CMakeFiles/run
cd /home/redbeard/zephyrproject/zephyr/build && /home/redbeard/zephyr-sdk-0.13.1/sysroots/x86_64-pokysdk-linux/usr/bin/qemu-system-i386 -m 4 -cpu qemu32,+nx,+pae -device isa-debug-exit,iobase=0xf4,iosize=0x04 -no-reboot -nographic -no-acpi -net none -pidfile qemu.pid -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -serial unix:/tmp/slip.sock -kernel /home/redbeard/zephyrproject/zephyr/build/zephyr/zephyr.elf
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /usr/local/bin/cmake --build /home/redbeard/zephyrproject/zephyr/build --target run

Environment (please complete the following information):

• Linux (Ubuntu 20.04.3 LTS)
• Toolchain - Zephyr SDK
• Zephyr v2.7.99

[gopiotr]

I checked that on Zephyr v2.6.99 this sample works properly.