roms/Makefile.edk2: define edk2-stable201905 network feature test macros

Due to edk2 commits 631195044ff0 ("OvmfPkg: Update DSC/FDF to use
NetworkPkg's include fragment file.", 2019-05-16) and 157a3b1aa50f
("ArmVirtPkg: Update DSC/FDF to use NetworkPkg's include fragment file.",
2019-05-16), we'll have to pefix the HTTP_BOOT_ENABLE and TLS_ENABLE build
flags with "NETWORK_", for building edk2 at tag "edk2-stable201905".

Right now the new flags are no-ops, so we can insert them separately,
before advancing our edk2 submodule reference. We will remove the old
flags afterwards.

Cc: Philippe Mathieu-Daud <philmd@redhat.com>
Ref: https://bugs.launchpad.net/qemu/+bug/1831477


Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daud <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daud <philmd@redhat.com>

roms/Makefile.edk2

@@ -57,6 +57,7 @@ submodules:
 		--arch=AARCH64 \
 		--platform=ArmVirtPkg/ArmVirtQemu.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE
 	cp edk2/Build/ArmVirtQemu-AARCH64/DEBUG_$(call toolchain,aarch64)/FV/QEMU_EFI.fd \
 		$@
@@ -68,6 +69,7 @@ submodules:
 		--arch=ARM \
 		--platform=ArmVirtPkg/ArmVirtQemu.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE
 	cp edk2/Build/ArmVirtQemu-ARM/DEBUG_$(call toolchain,arm)/FV/QEMU_EFI.fd \
 		$@
@@ -79,7 +81,9 @@ submodules:
 		--arch=IA32 \
 		--platform=OvmfPkg/OvmfPkgIa32.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE \
+		-D NETWORK_TLS_ENABLE \
 		-D TLS_ENABLE \
 		-D TPM2_ENABLE \
 		-D TPM2_CONFIG_ENABLE
@@ -91,7 +95,9 @@ submodules:
 		--arch=IA32 \
 		--platform=OvmfPkg/OvmfPkgIa32.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE \
+		-D NETWORK_TLS_ENABLE \
 		-D TLS_ENABLE \
 		-D TPM2_ENABLE \
 		-D TPM2_CONFIG_ENABLE \
@@ -105,7 +111,9 @@ submodules:
 		--arch=X64 \
 		--platform=OvmfPkg/OvmfPkgX64.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE \
+		-D NETWORK_TLS_ENABLE \
 		-D TLS_ENABLE \
 		-D TPM2_ENABLE \
 		-D TPM2_CONFIG_ENABLE
@@ -118,7 +126,9 @@ submodules:
 		--arch=X64 \
 		--platform=OvmfPkg/OvmfPkgIa32X64.dsc \
 		-D NETWORK_IP6_ENABLE \
+		-D NETWORK_HTTP_BOOT_ENABLE \
 		-D HTTP_BOOT_ENABLE \
+		-D NETWORK_TLS_ENABLE \
 		-D TLS_ENABLE \
 		-D TPM2_ENABLE \
 		-D TPM2_CONFIG_ENABLE \