soc: Remove unused RESET_LOW generic

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

core_dram_tb.vhdl

@@ -61,7 +61,6 @@ begin
 	    SIM => true,
 	    MEMORY_SIZE => MEMORY_SIZE,
 	    RAM_INIT_FILE => MAIN_RAM_FILE,
-	    RESET_LOW => false,
             HAS_DRAM => true,
 	    DRAM_SIZE => 256 * 1024 * 1024,
             DRAM_INIT_SIZE => ROM_SIZE,

core_flash_tb.vhdl

@@ -38,7 +38,6 @@ begin
 	    SIM => true,
 	    MEMORY_SIZE => (384*1024),
 	    RAM_INIT_FILE => "main_ram.bin",
-	    RESET_LOW => false,
 	    CLK_FREQ => 100000000,
             HAS_SPI_FLASH    => true,
             SPI_FLASH_DLINES => 4,

core_tb.vhdl

@@ -30,7 +30,6 @@ begin
 	    SIM => true,
 	    MEMORY_SIZE => (384*1024),
 	    RAM_INIT_FILE => "main_ram.bin",
-	    RESET_LOW => false,
 	    CLK_FREQ => 100000000,
             HAS_SPI_FLASH => false
 	    )

fpga/top-arty.vhdl

@@ -128,7 +128,6 @@ begin
         generic map(
             MEMORY_SIZE        => BRAM_SIZE,
             RAM_INIT_FILE      => RAM_INIT_FILE,
-            RESET_LOW          => RESET_LOW,
             SIM                => false,
             CLK_FREQ           => CLK_FREQUENCY,
             HAS_DRAM           => USE_LITEDRAM,

fpga/top-generic.vhdl

@@ -75,7 +75,6 @@ begin
 	generic map(
 	    MEMORY_SIZE   => MEMORY_SIZE,
 	    RAM_INIT_FILE => RAM_INIT_FILE,
-	    RESET_LOW     => RESET_LOW,
 	    SIM           => false,
 	    CLK_FREQ      => CLK_FREQUENCY,
 	    DISABLE_FLATTEN_CORE => DISABLE_FLATTEN_CORE,

fpga/top-nexys-video.vhdl

@@ -116,7 +116,6 @@ begin
 	generic map(
 	    MEMORY_SIZE   => BRAM_SIZE,
 	    RAM_INIT_FILE => RAM_INIT_FILE,
-	    RESET_LOW     => RESET_LOW,
 	    SIM           => false,
 	    CLK_FREQ      => CLK_FREQUENCY,
 	    HAS_DRAM      => USE_LITEDRAM,

soc.vhdl

@@ -30,7 +30,6 @@ entity soc is
     generic (
 	MEMORY_SIZE        : natural;
 	RAM_INIT_FILE      : string;
-	RESET_LOW          : boolean;
 	CLK_FREQ           : positive;
 	SIM                : boolean;
 	DISABLE_FLATTEN_CORE : boolean := false;