ci(msm8916): add build config for aarch32/sp_min and tspd

Also build the msm8916 platform for AArch32/SP_MIN and with Test Secure
Payload to avoid future build regressions for those.

Change-Id: I86e70beeea8c10b522d02e746247cca20c3f8d11
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
diff --git a/tf_config/msm8916-aarch32-default b/tf_config/msm8916-aarch32-default
new file mode 100644
index 0000000..574fc73
--- /dev/null
+++ b/tf_config/msm8916-aarch32-default
@@ -0,0 +1,4 @@
+AARCH32_SP=sp_min
+ARCH=aarch32
+CROSS_COMPILE=arm-none-eabi-
+PLAT=msm8916