hardware: samsung_slsi: libcamera2: modify flash function

This patch is to fix some bugs about flash operation
- support flash torch at video mode
- fix a bug of flash with manual white balance
- fix a bug of EV setting during capture
- change checking flash status methods

Change-Id: Iecc5010bdf9a09aff27d3c2b9e6bf3b84ae77e60
Signed-off-by: Younghwan Joo <yhwan.joo@samsung.com>
3 files changed