EmbeddedPkg: Add LOONGARCH64 and RISCV64 as supported architectures

Both LOONGARCH64 and RISCV64 platforms make use of modules in
EmbeddedPkg, for example in OvmfPkg. So add them as supported
architectures for the package to simplify build tests.

Signed-off-by: Leif Lindholm <[email protected]>

Author: leiflindholm

EmbeddedPkg/EmbeddedPkg.dsc

@@ -21,7 +21,7 @@
   PLATFORM_VERSION               = 0.1
   DSC_SPECIFICATION              = 0x00010005
   OUTPUT_DIRECTORY               = Build/Embedded
-  SUPPORTED_ARCHITECTURES        = IA32|X64|AARCH64
+  SUPPORTED_ARCHITECTURES        = IA32|X64|AARCH64|RISCV64|LOONGARCH64
   BUILD_TARGETS                  = DEBUG|RELEASE|NOOPT
   SKUID_IDENTIFIER               = DEFAULT