linker: place const custom sections in RAM

The custom const sections are placed in FLASH and being copied from dinit to
Flash again, We can avoid that by placing the section in RAM to begin with

Signed-off-by: Muhammed Zamroodh <muhammed.zamroodh@ignitarium.com>

Author: MuhammedZamroodh

include/zephyr/linker/linker-tool-gcc.h

@@ -118,6 +118,8 @@
 #define GROUP_ROM_LINK_IN(vregion, lregion)
 #elif defined(K_MEM_IS_VM_KERNEL)
 #define GROUP_ROM_LINK_IN(vregion, lregion) > vregion AT > lregion
+#elif defined(__XC_DSC__) || defined(__XCDSC_LINKER_CMD__)
+#define GROUP_ROM_LINK_IN(vregion, lregion) > vregion
 #else
 #define GROUP_ROM_LINK_IN(vregion, lregion) > lregion
 #endif
@@ -138,6 +140,8 @@
 #define GROUP_DATA_LINK_IN(vregion, lregion)
 #elif defined(CONFIG_XIP) || defined(K_MEM_IS_VM_KERNEL)
 #define GROUP_DATA_LINK_IN(vregion, lregion) > vregion AT > lregion
+#elif defined(__XC_DSC__) || defined(__XCDSC_LINKER_CMD__)
+#define GROUP_DATA_LINK_IN(vregion, lregion) > vregion
 #else
 #define GROUP_DATA_LINK_IN(vregion, lregion) > vregion
 #endif
@@ -158,6 +162,8 @@
 #define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion AT > lregion
 #elif defined(CONFIG_XIP)
 #define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion AT > vregion
+#elif defined(__XC_DSC__) || defined(__XCDSC_LINKER_CMD__)
+#define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion
 #else
 #define GROUP_NOLOAD_LINK_IN(vregion, lregion) > vregion
 #endif