configs: arm: Add additional flags to prune file

Set CONFIG_ARCH_MMP=n to remove it from the build config.

Signed-off-by: Dan Murphy <dmurphy@ti.com>

config/multi_v7_prune.cfg

diff --git a/config/multi_v7_prune.cfg b/config/multi_v7_prune.cfg
index 37644ef..6ebdfda 100644
--- a/config/multi_v7_prune.cfg
+++ b/config/multi_v7_prune.cfg
@@ -23,6 +23,7 @@
 CONFIG_ARCH_MEDIATEK=n
 CONFIG_ARCH_MILBEAUT=n
 CONFIG_ARCH_QCOM=n
+CONFIG_ARCH_MMP=n
 CONFIG_ARCH_MSM8X60=n
 CONFIG_ARCH_MSM8960=n
 CONFIG_ARCH_MSM8974=n