Implement various Cell Broadcast alerts

This is a combination of 2 commits.
This is the 1st commit message:

    Implement IT-Alert MCC 222(it)

    Patch is from Android R.

    SPEC implement
    S1 Receiving messages : Default of all level CB message are on.
    S2 Tones and vibrations : Android original design.
    S3 Presentation : Android original design.
    S4 Cell Broadcast settings menu : Android original design.
    S5 List of received messages : Android original design.
    S6 Data coding scheme : Android original design.
    P1 Heading : Modified
    P2 Settings menu : Modified
    P3 Default OPT-out : Modified
    P4 Message_Identifier : Modified
    P5 Languages and Alphabets : Android original design.
    P6 Behavior : Android original design.
    P7 Differences in the locked state : Modified
    R1 3-digit Message_identifier : No need to implement.
    R2 speech synthesis(reading messages) : Android original design.
    R3 Icon : Android original design.

    Issue: PRJ8901-1340
    Change-Id: Iad5829d133a390a44bcf390dd1b546f7fb54761a
    (cherry picked from commit f3f4925e0b9bf00f3ad967e47a0c0359654a0a78)

This is the commit message #2:

    Implement IT-Alert MCC 234 & 235 (UK)

    SPEC implementation :
    1> change title of cmas_presidential_level_alert to “Government alert"
    2> Use full sound when silent mode been enabled.
    3> hide amber alert because UK does not support it.

    Issue: PRJ8901-1556
    Change-Id: I10933b9a46ef144704dd1ed773ca090f7e5d79bb
    (cherry picked from commit e0cc44f0884ca6d1bffb415b19e000fbd03d6b86)

Issue: FP3-A11#231
Change-Id: Iad5829d133a390a44bcf390dd1b546f7fb54761a
6 files changed