asm: make use regular asserts that will just work on baremetal

Previously had wonky line pointer in asm_main. New interface simpler and more portable.

Add tests for ASSERT_EQ_ and family in arm and aarch64, previously on x86_64.

ASSERT_EQ_ and family in ARM can now either take =123, =addr or var, before this
the = was added on macros so var was not possible.

Define the main function directly in assembly, the C driver was useless.

userland/arch/aarch64/lkmc_assert_eq_fail.S

@@ -0,0 +1,35 @@
+/* https://github.com/cirosantilli/linux-kernel-module-cheat#userland-assembly */
+
+#include <lkmc.h>
+
+LKMC_PROLOGUE
+    ldr x19, =0x123456789ABCDEF0
+    ldr x20, =0x123456789ABCDEF0
+    ldr x21, =0x000000009ABCDEF0
+
+    /* Passing examples. */
+
+    /* Register immediate. */
+    LKMC_ASSERT_EQ(x19, =0x123456789ABCDEF0)
+#if 0
+    /* Syntax not supported. */
+    LKMC_ASSERT_EQ(=0x123456789ABCDEF0, x19)
+#endif
+
+    /* Register register. */
+    LKMC_ASSERT_EQ_REG(x19, x20)
+    LKMC_ASSERT_EQ_REG(x20, x19)
+    LKMC_ASSERT_EQ_REG_32(w19, w21)
+    LKMC_ASSERT_EQ_REG_32(w21, w19)
+
+    /* Register memory. */
+    LKMC_ASSERT_EQ(x19, myvar)
+#if 0
+    /* Syntax not supported. */
+    LKMC_ASSERT_EQ(myvar, x19)
+#endif
+
+    /* Now let's fail. */
+    LKMC_ASSERT_EQ(x19, =0x123456789ABCDEF1)
+LKMC_EPILOGUE
+myvar: .quad 0x123456789ABCDEF0