rtl8195am: fix LogUART Tx interrupt crash

[M-ichae-l]

Description

• fix for issue UARTSerial output does not work with REALTEK_RTL8195AM #6358

• add Mask & UnMask Tx FIFO empty interrupt for LogUart

• fix LogUart interrupt enable

• fix LogUart interrupt handler

• coding style fix

Pull request type

• Fix

[SeppoTakalo]

I verified that this fixes the issue #6358

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 1515
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/6415/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build
/morph mbed2-build

[mbed-ci]

Exporter Build : SUCCESS

Build number : 1153
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/6415/

[mbed-ci]

Test : FAILURE

Build number : 1293
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6415/1293

[0xc0170]

/morph test

[mbed-ci]

Test : FAILURE

Build number : 1302
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6415/1302

[studavekar]

Failure :

• Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6415/1293
  NUCLEO_F429ZI-IAR

1521672512.14][CONN][RXD] >>> Running case #1: '500us lp_ticker'...
[1521672512.14][CONN][INF] found KV pair in stream: {{__testcase_name;1s lp_ticker deepsleep}}, queued...
[1521672512.29][CONN][INF] found KV pair in stream: {{__testcase_start;500us lp_ticker}}, queued...
[1521672512.36][CONN][RXD] :76::FAIL: Values Not Within Delta 600 Expected 500 Was 2713
[1521672512.36][CONN][RXD] >>> '500us lp_ticker': 0 passed, 1 failed with reason 'Test Cases Failed'
[1521672512.36][CONN][RXD] 

• Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6415/1302
  NUCLEO_F401RE test timeout failure may be related to device flash has worn out

NUCLEO_F401RE-ARM.features-tests-filesystem-util_block_device.features-tests-filesystem-util_block_device
NUCLEO_F401RE-GCC_ARM.tests-mbed_platform-singletonptr.tests-mbed_platform-singletonptr
NUCLEO_F401RE-IAR.features-frameworks-utest-tests-unit_tests-case_async_validate.features-frameworks-utest-tests-unit_tests-case_async_validate

Re-trigging test

/morph test

[mbed-ci]

Test : SUCCESS

Build number : 1316
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/6415/1316

[KariHaapalehto]

This pull request contains incompatible white space changes, that broke rebasing.

06:16:42  create mode 100644 targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/TARGET_MTB_ADV_WISE_1530/PinNames.h
06:16:42  create mode 100644 targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F412xG/TARGET_MTB_ADV_WISE_1530/system_clock.c
06:16:42 + git checkout PR_6423
06:16:42 error: Your local changes to the following files would be overwritten by checkout:
06:16:42 	targets/TARGET_Realtek/TARGET_AMEBA/TARGET_RTL8195A/serial_api.c
06:16:42 Please, commit your changes or stash them before you can switch branches.
06:16:42 Aborting
06:16:42 Build step 'Execute shell' marked build as failure
06:16:42 Archiving artifacts

@0xc0170 @cmonr @M-ichae-l @SeppoTakalo
Please correct this immediatilly, this is breaking CI

[0xc0170]

Already proposed, waiting for CI and will be fixed asap