SKYH4-3475 :UI not accepting the complete digit map only accepts up to 257 char
SKYH4-3475 :UI not accepting the complete digit map only accepts up to 257 char

Reason for change: Modified the 'DigitMap' String to show exact set value in GUI with UTF-8 encoding Charset.

Test Procedure: Login to GUI and navigate to 'Voice Diagnostics > SIP Basic > ServiceProvider', set the v12 configuration for DigitMap and Save the page.
GUI will bind with all the values

Risks: low

Signed-off-by: Viswa Patneedi <d846d6cabfacbc3878c9b858929fee58d06b2bd5@sky.uk>
(cherry picked from commit 950eb8465365111526af30332695708352504a6b)
Change-Id: I31119200ef5e13770ac554ab9bc181d7c922237d

rdkcmf/rdkb-webui,rdkcmf/rdkb-webui,rdkcmf/rdkb-webui,rdkcmf/rdkb-webui,rdkcmf/rdkb-webui