[Telink] Update zephyr config (#28051)

* [Telink] Set correct NVS settings

* [Telink] Enable stream flash erase by default

config/telink/app/zephyr.conf

@@ -111,12 +111,13 @@ CONFIG_OPENTHREAD_EXTERNAL_HEAP=y
 # Config dynamic interrupts to have posibility to switch between BLE/Thread radio drivers
 CONFIG_DYNAMIC_INTERRUPTS=y
 
-# Set multiplicator of Name Value Storage (NVS) as 8 to reach NVS sector size 2048
-# nvs_sector_size = flash_page_size * mult = 256 * 8 = 2048
-CONFIG_SETTINGS_NVS_SECTOR_SIZE_MULT=8
+# Set multiplicator of Name Value Storage (NVS) as 16 to reach NVS sector size 4096
+# nvs_sector_size = flash_page_size * mult = 256 * 16 = 4096
+CONFIG_SETTINGS_NVS_SECTOR_SIZE_MULT=16
 
 # Enable NVS lookup cache
 CONFIG_NVS_LOOKUP_CACHE=y
+CONFIG_NVS_LOOKUP_CACHE_SIZE=512
 
 # Reboot system when fault happened
 CONFIG_TELINK_B91_REBOOT_ON_FAULT=y
@@ -132,6 +133,7 @@ CONFIG_GETOPT_LONG=y
 
 # flash stream functionality
 CONFIG_STREAM_FLASH=y
+CONFIG_STREAM_FLASH_ERASE=y
 
 # In current config/zephyr/Kconfig
 # next deprecated values are selected