dt-bindings: Synchronize R-Car Gen3 headers with Linux 5.2

Backport and squash below Linux v5.2 commits:

Commit id       *  Summary line
da3e1c57caf93e [1] soc: renesas: r8a77970-sysc: Remove non-existent CR7 power domain
b5eb730e031aca [1] soc: renesas: r8a77970-sysc: Correct names of A2DP/A2CN power domains
3961d355dfb512     dt-bindings: power: r8a77965: Remove non-existent A3IR power domain

(*) Patch id mismatch between Linux and U-Boot commit
[1] Dropped changes in drivers/soc/renesas/r8a77970-sysc.c,
    since the file doesn't exist in U-Boot.

Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
diff --git a/include/dt-bindings/power/r8a77965-sysc.h b/include/dt-bindings/power/r8a77965-sysc.h
index 05a4b59..de82d8a 100644
--- a/include/dt-bindings/power/r8a77965-sysc.h
+++ b/include/dt-bindings/power/r8a77965-sysc.h
@@ -21,7 +21,6 @@
 #define R8A77965_PD_A3VC		14
 #define R8A77965_PD_3DG_A		17
 #define R8A77965_PD_3DG_B		18
-#define R8A77965_PD_A3IR		24
 #define R8A77965_PD_A2VC1		26
 
 /* Always-on power area */
diff --git a/include/dt-bindings/power/r8a77970-sysc.h b/include/dt-bindings/power/r8a77970-sysc.h
index bf54779..85cc5f2 100644
--- a/include/dt-bindings/power/r8a77970-sysc.h
+++ b/include/dt-bindings/power/r8a77970-sysc.h
@@ -16,13 +16,12 @@
 
 #define R8A77970_PD_CA53_CPU0		 5
 #define R8A77970_PD_CA53_CPU1		 6
-#define R8A77970_PD_CR7			13
 #define R8A77970_PD_CA53_SCU		21
 #define R8A77970_PD_A2IR0		23
-#define R8A77970_PD_A3IR			24
+#define R8A77970_PD_A3IR		24
 #define R8A77970_PD_A2IR1		27
-#define R8A77970_PD_A2IR2		28
-#define R8A77970_PD_A2IR3		29
+#define R8A77970_PD_A2DP		28
+#define R8A77970_PD_A2CN		29
 #define R8A77970_PD_A2SC0		30
 #define R8A77970_PD_A2SC1		31