realme_trinket: : Enable Zygote Pre-forking

- This property gives faster app startup times (in Android 10 only) at the expense of a small amount of memory.

- Zygote preforking which basically maintains empty copies of zygote that apps can use to start faster without have to go through the overhead of creating an zygote copy during launch.

- Also, add a property to limit the memory overhead to 5mb

Credits to @DanGLES3 for finding this tweak.

device.mk

@@ -157,3 +157,8 @@ PRODUCT_BOOT_JARS += \
 # zRam
 PRODUCT_PACKAGES += \
     set_zram.sh
+
+# Zygote preforking
+PRODUCT_PROPERTY_OVERRIDES += \
+    persist.device_config.runtime_native.usap_pool_enabled=true \
+    persist.device_config.runtime_native.usap_pool_size_max=5