soc: arm64: intel_socfpga: hwmv2: Rename SoCs

Rename SoC for better HWMv2 use:
  `intel_socfpga_agilex`  --> `agilex`
  `intel_socfpga_agilex5` --> `agilex5`

Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>

boards/intel/intel_socfpga/agilex5_socdk/board.yml

@@ -1,4 +1,4 @@
 board:
   name: intel_socfpga_agilex5_socdk
   socs:
-    - name: intel_socfpga_agilex5
+    - name: agilex5

boards/intel/intel_socfpga/agilex_socdk/board.yml

@@ -1,4 +1,4 @@
 board:
   name: intel_socfpga_agilex_socdk
   socs:
-    - name: intel_socfpga_agilex
+    - name: agilex

soc/intel/intel_socfpga/agilex/Kconfig.soc

@@ -17,4 +17,4 @@ config SOC_AGILEX
 	  Intel SoC FPGA Agilex
 
 config SOC
-	default "intel_socfpga_agilex" if SOC_AGILEX
+	default "agilex" if SOC_AGILEX

soc/intel/intel_socfpga/agilex5/Kconfig.soc

@@ -17,4 +17,4 @@ config SOC_AGILEX5
 	  Intel SoC FPGA Agilex5
 
 config SOC
-	default "intel_socfpga_agilex5" if SOC_AGILEX5
+	default "agilex5" if SOC_AGILEX5

soc/intel/intel_socfpga/soc.yml

@@ -3,7 +3,7 @@ family:
     series:
       - name: agilex
         socs:
-          - name: intel_socfpga_agilex
+          - name: agilex
       - name: agilex5
         socs:
-          - name: intel_socfpga_agilex5
+          - name: agilex5