doc: update known issues for location

Add location known issues

Signed-off-by: Krzysztof Taborowski <[email protected]>

Author: ktaborowski

doc/known_issues.rst

@@ -31,13 +31,21 @@ KRKNWK-20869: Intermittent downlink message reception issues with multilink conf
   When multiple transport types are enabled (multilink), downlink messages from the cloud may not be received by the device.
   Sometimes messages arrive via a different transport than expected. Uplink messages work as expected.
 
-  
   **Affected platforms:** nRF52840, nRF54L15 with LR1110 shield
 
   **Note:** The exact set of affected platforms that show this behavior is not constant, and reproduction of this issue is not consistent.
 
   **Impact:** Moderate - affects message reliability in multilink scenarios
 
+
+KRKNWK-20851: can not initialize location when lora or fsk transport is initialized in sidewalk
+
+  **Affected platforms:** nRF52840, nRF54L15 with LR1110 shield
+  
+  **Note:** The reproduction of this issue is not consistent.
+  
+  **Impact:** Moderate - rear device freezes at unsuccessful location initialization, usually restart helps.
+
 **Lower Priority Issues:**
 
 KRKNWK-20863: Increased boot time due to bootloader configuration
@@ -59,6 +67,20 @@ KRKNWK-20863: Increased boot time due to bootloader configuration
 
   **Affected platforms:** All platforms (most significant impact on nRF52840)
 
+KRKNWK-20856 GNSS scan enters into endless loop
+
+  **Affected platforms:** nRF52840, nRF54L15 with LR1110 shield
+  
+  **Note:** The reproduction of this issue is not consistent.
+  
+  **Impact:** Small - location scans are mostly for test purposes. Issue does not occur with location send command.
+
+KRKNWK-20857 Location modem stays busy forever when scan operation overlaps with deinit
+
+  **Affected platforms:** nRF52840, nRF54L15 with LR1110 shield
+
+  **Impact:** Small - uncommon test scenario, location reinitialized after deinitialized during scan.
+
 List of known issues for v1.0.1
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