breakpad: Disable build on riscv

Unsupported arch as of now

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/breakpad/breakpad_git.bb

@@ -49,6 +49,8 @@ S = "${WORKDIR}/git"
 CXXFLAGS += "-D_GNU_SOURCE"
 
 COMPATIBLE_HOST_powerpc = "null"
+COMPATIBLE_HOST_riscv64 = "null"
+COMPATIBLE_HOST_riscv32 = "null"
 
 do_install_append() {
         install -d ${D}${includedir}